Digital_JJ TV_NN1 At_RR21 Last_RR22 ?_? 
Analog_VV0 TV_NN1 broadcasting_NN1 is_VBZ set_VVN to_TO end_VVI in_II two_MC years_NNT2 ,_, but_CCB its_APPGE legacy_NN1 could_VM make_VVI the_AT digital_JJ transition_NN1 anything_RR21 but_RR22 smooth_JJ Editor_NN1 's_GE Note_NN1 :_: We_PPIS2 are_VBR posting_VVG this_DD1 feature_NN1 from_II our_APPGE February_NPM1 2007_MC issue_NN1 because_CS the_AT transition_NN1 to_II DTV_NP1 has_VHZ been_VBN back_RP in_II the_AT news_NN1 ._. 
February_NPM1 17_MC ,_, 2009_MC ,_, is_VBZ D-day_NP1 --_NN1 when_CS the_AT term_NN1 "_" digital_JJ divide_NN1 "_" will_VM take_VVI on_RP a_AT1 whole_JJ new_JJ meaning_NN1 unrelated_JJ to_II computer_NN1 access_NN1 ._. 
That_DD1 is_VBZ when_RRQ the_AT nation_NN1 's_GE 1,700_MC analog_NN1 television_NN1 stations_NN2 will_VM shut_VVI down_RP in_II the_AT long-promised_JJ changeover_NN1 to_II all-digital_JJ broadcasting_NN1 ._. 
Cable_NN1 and_CC satellite_NN1 viewers_NN2 or_CC those_DD2 whose_DDQGE TV_NN1 has_VHZ a_AT1 digital_JJ tuner_NN1 will_VM be_VBI able_JK to_TO watch_VVI CSI_NN2 and_CC American_JJ Idol_NN1 unaware_JJ that_CST anything_PN1 has_VHZ changed_VVN ._. 
But_CCB the_AT 21_MC million_NNO households_NN2 using_VVG a_AT1 conventional_JJ set_NN1 with_IW rabbit_NN1 ears_NN2 or_CC a_AT1 rusty_JJ roof_NN1 antenna_NN1 --_NN1 typically_RR people_NN who_PNQS are_VBR poor_JJ ,_, elderly_JJ or_CC living_VVG in_II rural_JJ America_NP1 --_NN1 will_VM turn_VVI on_II their_APPGE TVs_NP1 and_CC see_VVI ..._... nothing_PN1 ._. 
Not_XX since_CS color_NN1 made_VVD black-and-white_JJ sets_NN2 passe_JJ has_VHZ a_AT1 new_JJ technology_NN1 so_RR compelled_VVN consumers_NN2 to_TO replace_VVI their_APPGE primary_JJ entertainment_NN1 appliance_NN1 ._. 
In_II contrast_NN1 to_II the_AT variable_JJ radio_NN1 waves_NN2 of_IO analog_NN1 broadcasting_NN1 ,_, digital_JJ TV_NN1 (_( or_CC DTV_NP1 )_) uses_VVZ electrical_JJ pulses_NN2 to_TO transmit_VVI information_NN1 precisely_RR and_CC efficiently_RR ._. 
Thus_RR ,_, DTV_NP1 offers_VVZ startlingly_RR sharp_JJ pictures_NN2 ,_, capable_JJ of_IO revealing_VVG individual_JJ blades_NN2 of_IO grass_NN1 on_II a_AT1 field_NN1 or_CC the_AT writing_NN1 on_II a_AT1 ransom_NN1 note_NN1 held_VVN in_II a_AT1 fictional_JJ detective_NN1 's_GE hand_NN1 ._. 
DTV_NP1 also_RR will_VM enable_VVI new_JJ interactive_JJ features_NN2 ,_, thanks_NN2 to_II its_APPGE ability_NN1 to_TO pack_VVI enormous_JJ amounts_NN2 of_IO information_NN1 in_II scarce_JJ bandwidth_NN1 ._. 
For_REX21 instance_REX22 ,_, it_PPH1 could_VM let_VVI viewers_NN2 viewers_NN2 call_VVI up_RP stats_NN2 on_II a_AT1 ballplayer_NN1 during_II the_AT game_NN1 or_CC view_VV0 a_AT1 recipe_NN1 from_II a_AT1 cooking_NN1 show_NN1 ._. 
Broadcasters_NN2 will_VM be_VBI able_JK to_TO offer_VVI even_RR more_DAR channels_NN2 in_II the_AT available_JJ bandwidth_NN1 ,_, too_RR ._. 
The_AT freed-up_JJ space_NN1 will_VM make_VVI room_NN1 for_IF better_JJR communications_NN2 for_IF public_JJ safety_NN1 agencies_NN2 during_II emergencies_NN2 such_II21 as_II22 hurricanes_NN2 and_CC for_IF next-generation_JJ cellular_JJ services_NN2 ._. 
Several_DA2 thorny_JJ technology_NN1 issues_NN2 remain_VV0 ,_, however_RR ._. 
Even_RR after_II the_AT end_NN1 of_IO TV_NN1 broadcasting_NN1 as_CSA we_PPIS2 have_VH0 known_VVN it_PPH1 ,_, analog_VV0 TV_NN1 's_GE legacy_NN1 will_VM be_VBI with_IW us_PPIO2 for_IF years_NNT2 to_TO come_VVI ._. 
While_CS analog-retentive_JJ households_NN2 contemplate_VV0 the_AT grim_JJ reality_NN1 of_IO no_AT TV_NN1 at_RR21 all_RR22 ,_, others_NN2 who_PNQS seem_VV0 to_TO be_VBI digitally_RR outfitted_VVN will_VM still_RR experience_VVI stumbling_NN1 blocks_NN2 ._. 
Cable_NN1 systems_NN2 ,_, which_DDQ are_VBR already_RR set_VVN up_RP for_IF DTV_NP1 ,_, may_VM not_XX actually_RR be_VBI able_JK to_TO deliver_VVI purely_RR digital_JJ signals_NN2 ,_, because_CS many_DA2 of_IO their_APPGE customers_NN2 '_GE older_JJR "_" cable_NN1 ready_JJ "_" sets_NN2 still_RR have_VH0 analog-only_JJ tuners_NN2 ._. 
And_CC even_RR in_II areas_NN2 where_RRQ digital_JJ is_VBZ already_RR available_JJ ,_, it_PPH1 has_VHZ experienced_VVN service_NN1 hiccups_NN2 :_: picture_NN1 problems_NN2 and_CC even_RR clogged_VVN bandwidth_NN1 ._. 
Perhaps_RR it_PPH1 is_VBZ more_RGR accurate_JJ to_TO say_VVI that_CST long_RR after_II 2009_MC ,_, viewers_NN2 will_VM encounter_VVI a_AT1 series_NN of_IO digital_JJ divides_NN2 ,_, between_II analog_NN1 and_CC digital_JJ and_CC among_II different_JJ kinds_NN2 of_IO digital_JJ ._. 
The_AT idea_NN1 of_IO switching_VVG the_AT country_NN1 to_II digital_JJ TV_NN1 first_MD gained_VVD momentum_NN1 in_II Congress_NN1 during_II the_AT 1980s_MC2 ,_, when_CS the_AT legislature_NN1 became_VVD aware_JJ that_CST Japan_NP1 already_RR had_VHN high-definition_JJ TV_NN1 ,_, albeit_CS produced_VVN by_II an_AT1 analog_NN1 system_NN1 ._. 
(_( There_EX has_VHZ been_VBN much_DA1 confusion_NN1 over_II the_AT difference_NN1 between_II DTV_NP1 and_CC high-definition_JJ television_NN1 ,_, or_CC HDTV_NP1 ._. 
HDTV_NP1 is_VBZ simply_RR the_AT sexier_JJR subset_NN1 of_IO DTV_NP1 ,_, and_CC it_PPH1 has_VHZ a_AT1 few_DA2 special_JJ requirements_NN2 :_: more_DAR bandwidth_NN1 to_TO deliver_VVI it_PPH1 ,_, extra_JJ capacity_NN1 to_TO store_VVI it_PPH1 ,_, a_AT1 higher-resolution_JJ screen_NN1 to_TO show_VVI it_PPH1 and_CC a_AT1 larger_JJR display_NN1 to_TO appreciate_VVI it_PPH1 ._. )_) 
The_AT U.S._NP1 government_NN1 proceeded_VVD to_TO run_VVI a_AT1 series_NN of_IO tests_NN2 with_IW competing_JJ manufacturers_NN2 designed_VVN to_TO determine_VVI a_AT1 next-generation_JJ broadcast_NN1 system_NN1 ._. 
The_AT initial_JJ results_NN2 showed_VVD that_CST high-definition_JJ broadcasting_NN1 was_VBDZ not_XX practical_JJ without_IW compression_NN1 --_NN1 and_CC the_AT most_RGT important_JJ thing_NN1 to_TO know_VVI about_II digital_JJ is_VBZ that_CST ,_, unlike_JJ analog_NN1 ,_, it_PPH1 compresses_VVZ video_NN1 extremely_RR efficiently_RR ._. 
So_RR the_AT idea_NN1 of_IO retrofitting_VVG analog_NN1 broadcasting_NN1 for_IF greater_JJR resolution_NN1 was_VBDZ abandoned_VVN ._. 
The_AT Advanced_JJ Television_NN1 System_NN1 Committee_NN1 ,_, working_VVG with_IW an_AT1 alliance_NN1 of_IO companies_NN2 that_CST initially_RR had_VHN incompatible_JJ systems_NN2 ,_, ultimately_RR succeeded_VVN in_II unifying_VVG a_AT1 standard_NN1 ._. 
The_AT consortium_NN1 authorized_VVN 18_MC DTV_NP1 formats_NN2 ,_, two_MC of_IO which_DDQ --_NN1 1080i_FO and_CC 720p_NNU --_NN1 are_VBR high-definition_JJ and_CC meant_VVD for_IF viewing_VVG on_II wide_JJ screens_NN2 ._. 
The_AT 1080i_FO format_NN1 puts_VVZ 1,080_MC lines_NN2 on_II the_AT screen_NN1 by_II transmitting_VVG the_AT odd_JJ lines_NN2 ,_, then_RT the_AT even_JJ lines_NN2 ,_, and_CC interlacing_VVG them_PPHO2 ._. 
Hence_RR the_AT "_" i_ZZ1 ._. "_" 
The_AT second_MD puts_VVZ 720_MC lines_NN2 on_II the_AT screen_NN1 one_MC1 after_II the_AT other_JJ --_NN1 that_REX21 is_REX22 ,_, progressively_RR ._. 
Hence_RR the_AT "_" p_NN1 ._. "_" 
(_( In_II contrast_NN1 ,_, analog_VV0 broadcasts_NN2 offer_VV0 up_RG21 to_RG22 480_MC horizontal_JJ lines_NN2 ._. )_) 
Debates_NN2 over_II the_AT merits_NN2 of_IO each_DD1 are_VBR confined_VVN to_TO broadcast_VVI engineers_NN2 and_CC videophiles_NN2 ,_, who_PNQS cite_VV0 the_AT spatial_JJ advantage_NN1 of_IO displaying_VVG more_DAR lines_NN2 (_( 1080i_FO )_) versus_II the_AT temporal_JJ advantage_NN1 of_IO showing_VVG fast_JJ motion_NN1 (_( 720p_NNU )_) ._. 
Most_DAT viewers_NN2 do_VD0 not_XX care_VVI ._. 
The_AT first_MD publicly_RR available_JJ high-definition_JJ broadcasts_NN2 in_II the_AT U.S._NP1 began_VVD in_II 1998_MC ,_, as_CSA HDTV_NP1 sets_NN2 started_VVD going_VVG on_II sale_NN1 ._. 
In_II the_AT late_JJ 1990s_MC2 stations_NN2 were_VBDR expected_VVN to_TO give_VVI up_RP their_APPGE analog_NN1 frequencies_NN2 by_II 2006_MC ._. 
But_CCB that_DD1 plan_NN1 fell_VVD through_RP because_CS too_RG few_DA2 people_NN bought_VVD the_AT expensive_JJ digital_JJ TVs_NP1 or_CC the_AT set-top_JJ boxes_NN2 for_IF receiving_VVG the_AT signals_NN2 and_CC because_CS high-definition_JJ programming_NN1 rolled_VVD out_RP slowly_RR as_RR21 well_RR22 ._. 
NBC_NP1 ,_, for_REX21 example_REX22 ,_, offered_VVD only_RR one_MC1 series_NN in_II high_JJ definition_NN1 ,_, The_AT Tonight_RT Show_VV0 ,_, beginning_VVG in_II 1999_MC ._. 
It_PPH1 took_VVD another_DD1 five_MC years_NNT2 before_II the_AT network_NN1 showed_VVD all_DB its_APPGE prime-time_NNT1 dramas_NN2 and_CC sitcoms_NN2 in_II 1080i_FO ._. 
Broadcasters_NN2 had_VHD little_DA1 incentive_NN1 to_TO give_VVI up_RP their_APPGE analog_NN1 frequencies_NN2 ._. 
Compared_VVN with_IW DVD_NP1 ,_, a_AT1 home_NN1 video_NN1 format_NN1 introduced_VVD just_RR a_AT1 year_NNT1 earlier_RRR that_DD1 became_VVD the_AT most_RGT successful_JJ new_JJ product_NN1 launch_NN1 in_II consumer_NN1 electronics_NN1 history_NN1 ,_, HDTV_NP1 barely_RR registered_VVN in_II sales_NN or_CC public_JJ awareness_NN1 ._. 
In_II March_NPM1 2005_MC ,_, when_CS manufacturers_NN2 met_VVN in_II Washington_NP1 ,_, D.C._NP1 ,_, at_II an_AT1 HDTV_NP1 summit_NN1 ,_, there_EX was_VBDZ still_RR no_AT definitive_JJ cutoff_NN1 for_IF analog_NN1 broadcasting_NN1 ._. 
But_CCB in_II early_RR 2006_MC President_NNB George_NP1 W._NP1 Bush_NP1 signed_VVD a_AT1 law_NN1 compelling_VVG a_AT1 transition_NN1 in_II just_RR three_MC years_NNT2 ._. 
What_DDQ changed_VVD ?_? 
The_AT name_NN1 of_IO the_AT legislation_NN1 was_VBDZ a_AT1 clue_NN1 ._. 
It_PPH1 was_VBDZ called_VVN the_AT Deficit_NN1 Reduction_NN1 Act_NN1 of_IO 2005_MC ._. 
The_AT government_NN1 expects_VVZ to_TO raise_VVI billions_NNO2 of_IO dollars_NNU2 when_CS it_PPH1 auctions_VVZ off_II much_DA1 of_IO the_AT 108_MC megahertz_NNU (_( MHz_NNU )_) of_IO "_" returned_JJ "_" analog_NN1 frequencies_NN2 ._. 
Other_JJ factors_NN2 that_CST make_VV0 analog_NN1 's_GE demise_NN1 more_RGR likely_JJ this_DD1 time_NNT1 are_VBR that_CST DTV_NP1 tuners_NN2 are_VBR now_RT mandated_VVN in_II all_DB new_JJ TV_NN1 sets_VVZ with_IW a_AT1 screen_NN1 size_NN1 of_IO 25_MC inches_NNU2 or_CC larger_JJR (_( and_CC will_VM be_VBI required_VVN in_II all_DB sets_NN2 ,_, regardless_RR of_IO screen_NN1 size_NN1 ,_, by_II March_NPM1 1_MC1 of_IO this_DD1 year_NNT1 )_) ,_, most_DAT prime-time_NNT1 network_NN1 series_NN and_CC all_DB major_JJ sports_NN2 events_NN2 are_VBR broadcast_VVN in_II high-def_NN1 ,_, and_CC most_DAT cable_NN1 systems_NN2 carry_VV0 from_II four_MC to_II a_AT1 dozen_NNO high-def_JJ channels_NN2 (_( although_CS that_DD1 number_NN1 still_RR represents_VVZ a_AT1 mere_JJ fraction_NN1 of_IO their_APPGE overall_JJ channel_NN1 lineups_NN2 )_) ._. 
The_AT Long_JJ Good-bye_NN1 Some_DD argue_VV0 that_CST the_AT cessation_NN1 of_IO over-the-air_JJ analog_NN1 TV_NN1 by_II federal_JJ law_NN1 will_VM be_VBI far_RG more_RGR disruptive_JJ than_CSN when_CS color_NN1 elbowed_VVD black-and-white_JJ aside_RL in_II the_AT 1960s_MC2 ._. 
After_II all_DB ,_, those_DD2 silvery_JJ tubes_NN2 continue_VV0 to_TO work_VVI even_RR today_RT ._. 
That_DD1 will_VM not_XX be_VBI possible_JJ with_IW conventional_JJ TV_NN1 sets_VVZ unless_CS they_PPHS2 have_VH0 a_AT1 digital_JJ converter_NN1 box_NN1 ._. 
Adding_VVG boxes_NN2 ,_, which_DDQ are_VBR expected_VVN to_TO cost_VVI about_RG $60_NNU for_IF a_AT1 no-frills_NN2 model_NN1 ,_, to_II every_AT1 TV_NN1 in_II any_DD given_JJ household_NN1 could_VM be_VBI an_AT1 expensive_JJ proposition_NN1 ._. 
According_II21 to_II22 the_AT National_JJ Association_NN1 of_IO Broadcasters_NN2 ,_, the_AT 21_MC million_NNO homes_NN2 that_CST receive_VV0 only_RR over-the-air_JJ signals_NN2 own_VV0 a_AT1 total_NN1 of_IO 45_MC million_NNO TV_NN1 sets_NN2 ._. 
If_CS you_PPY add_VV0 that_DD1 figure_NN1 to_II the_AT 28_MC million_NNO second_MD and_CC third_MD TVs_NP1 in_II homes_NN2 with_IW cable_NN1 or_CC satellite_NN1 where_CS only_RR the_AT primary_JJ set_NN1 is_VBZ hooked_VVN up_II21 to_II22 the_AT pay_NN1 service_NN1 ,_, some_DD 73_MC million_NNO TVs_NP1 nationwide_RL could_VM go_VVI dark_NN1 on_II D-day_NP1 ._. 
(_( Because_CS many_DA2 of_IO those_DD2 secondary_JJ sets_NN2 are_VBR attached_VVN to_II DVD_NP1 or_CC video_NN1 game_NN1 players_NN2 ,_, they_PPHS2 will_VM not_XX necessarily_RR become_VVI useless_JJ just_RR because_CS they_PPHS2 can_VM not_XX receive_VVI broadcasts_NN2 ._. )_) 
To_TO take_VVI the_AT financial_JJ sting_NN1 out_II21 of_II22 the_AT changeover_NN1 ,_, Congress_NN1 has_VHZ authorized_VVN the_AT U.S._NP1 Commerce_NN1 Department_NN1 's_GE National_JJ Telecommunications_NN2 and_CC Information_NN1 Administration_NN1 to_TO spend_VVI up_RG21 to_RG22 $1.5_NNU billion_NNO on_II subsidies_NN2 ._. 
Starting_VVG in_II 2008_MC ,_, those_DD2 who_PNQS can_VM not_XX afford_VVI a_AT1 box_NN1 will_VM be_VBI eligible_JJ for_IF two_MC coupons_NN2 worth_II $40_NNU each_DD1 toward_II their_APPGE purchase_NN1 ._. 
To_TO record_VVI an_AT1 over-the-air_JJ signal_NN1 ,_, older_JJR VCRs_NP1 and_CC DVRs_NP1 will_VM also_RR have_VHI to_TO be_VBI attached_VVN to_II a_AT1 conversion_NN1 box_NN1 ,_, although_CS by_II July_NPM1 1_MC1 ,_, 2007_MC ,_, any_DD new_JJ device_NN1 sold_VVD that_CST includes_VVZ a_AT1 tuner_NN1 (_( DVD_NP1 player/recorder_NN1 ,_, DVR_NP1 ,_, computer_NN1 TV_NN1 card_NN1 )_) must_VM include_VVI a_AT1 DTV_NP1 tuner_NN1 ._. 
Even_CS21 if_CS22 your_APPGE TV_NN1 can_VM receive_VVI over-the-air_JJ digital_JJ signals_NN2 ,_, that_DD1 does_VDZ not_XX guarantee_VVI you_PPY can_VM see_VVI the_AT pictures_NN2 ._. 
Analog_VV0 offers_NN2 what_DDQ is_VBZ called_VVN "_" graceful_JJ degradation_NN1 "_" :_: people_NN in_II fringe_NN1 reception_NN1 areas_NN2 can_VM at_RR21 least_RR22 see_VVI something_PN1 ,_, even_CS21 if_CS22 the_AT picture_NN1 ghosts_NN2 or_CC fades_VVZ in_RP and_CC out_RP ._. 
DTV_NP1 is_VBZ not_XX as_RG forgiving_JJ ._. 
You_PPY either_RR get_VV0 it_PPH1 ,_, or_CC you_PPY do_VD0 not_XX ._. 
Analog_VV0 TV_NN1 transmits_VVZ a_AT1 complete_JJ picture_NN1 30_MC times_NNT2 a_AT1 second_NNT1 ,_, a_AT1 lavish_JJ waste_NN1 of_IO bandwidth_NN1 from_II a_AT1 digital_JJ perspective_NN1 ._. 
Digital_JJ compression_NN1 ,_, on_II the_AT other_JJ hand_NN1 ,_, is_VBZ based_VVN on_II the_AT premise_NN1 that_CST it_PPH1 is_VBZ only_RR necessary_JJ to_TO transmit_VVI reference_NN1 frames_NN2 and_CC intermittent_JJ changes_NN2 ._. 
That_DD1 is_VBZ how_RRQ the_AT same_DA 6_MC MHz_NNU allocated_VVN to_II a_AT1 single_JJ analog_NN1 TV_NN1 channel_NN1 can_VM accommodate_VVI up_RG21 to_RG22 six_MC standard-definition_JJ digital_JJ channels_NN2 or_CC perhaps_RR one_MC1 HDTV_NP1 channel_NN1 ._. 
But_CCB it_PPH1 also_RR explains_VVZ why_RRQ momentary_JJ signal_NN1 losses_NN2 can_VM be_VBI so_RG disruptive_JJ to_II DTV_NP1 reception_NN1 ._. 
Without_IW the_AT luxury_NN1 of_IO analog_NN1 redundancy_NN1 ,_, a_AT1 DTV_NP1 set_NN1 may_VM freeze_VVI up_RP on_II the_AT last_MD reference_NN1 frame_NN1 it_PPH1 received_VVD ,_, or_CC the_AT picture_NN1 may_VM break_VVI into_II a_AT1 less_DAR than_CSN gorgeous_JJ mosaic_NN1 or_CC just_RR go_VV0 black_JJ ._. 
There_EX is_VBZ nothing_PN1 graceful_JJ about_II any_DD of_IO those_DD2 glitches_NN2 ,_, especially_RR if_CS they_PPHS2 happen_VV0 as_II the_AT killer_NN1 is_VBZ revealed_VVN during_II a_AT1 crime_NN1 show_NN1 ._. 
And_CC you_PPY do_VD0 not_XX have_VHI to_TO be_VBI living_VVG in_II a_AT1 valley_NN1 80_MC miles_NNU2 from_II the_AT broadcast_NN1 tower_NN1 to_TO feel_VVI abandoned_VVN by_II a_AT1 DTV_NP1 signal_NN1 ._. 
Multipath_NN1 reflection_NN1 continues_VVZ to_TO be_VBI a_AT1 problem_NN1 within_II a_AT1 city_NN1 ;_; the_AT receiver_NN1 gets_VVZ multiple_JJ versions_NN2 of_IO the_AT same_DA broadcast_NN1 because_CS it_PPH1 bounces_VVZ off_RP buildings_NN2 ._. 
The_AT U.S._NP1 uses_VVZ a_AT1 transmission_NN1 standard_NN1 called_VVN 8-VSB_NP1 (_( for_IF 8-level_JJ vestigial_JJ sideband_NN1 )_) ,_, which_DDQ is_VBZ more_RGR susceptible_JJ to_TO signal_VVI woes_NN2 than_CSN the_AT European_JJ standard_NN1 COFDM_NP1 (_( coded_JJ orthogonal_JJ frequency_NN1 division_NN1 multiplexing_VVG )_) ._. 
Today_RT 's_GE receivers_NN2 can_VM better_RRR compensate_VVI for_IF this_DD1 problem_NN1 than_CSN ones_NN2 manufactured_VVN at_II the_AT dawn_NNT1 of_IO DTV_NP1 ,_, thanks_NN2 to_II more_RGR powerful_JJ processors_NN2 ._. 
Newer_JJR receivers_NN2 are_VBR using_VVG higher-performance_JJ chips_NN2 capable_JJ of_IO calculating_VVG a_AT1 greater_JJR quantity_NN1 of_IO reflected_JJ signals_NN2 and_CC discarding_VVG them_PPHO2 more_RGR quickly_RR than_CSN the_AT processors_NN2 in_II earlier-generation_JJ DTV_NP1 receivers_NN2 &lsqb;_( see_VV0 "_" The_AT Multipath_NN1 to_II Clarity_NN1 ,_, "_" by_II Philip_NP1 Yam_NP1 ;_; Scientific_JJ American_JJ ,_, June_NPM1 2005_MC &rsqb;_) ._. 
But_CCB viewers_NN2 may_VM still_RR have_VHI to_TO reposition_VVI an_AT1 indoor_JJ antenna_NN1 when_CS they_PPHS2 switch_VV0 to_II a_AT1 channel_NN1 coming_VVG from_II a_AT1 different_JJ direction_NN1 --_NN1 a_AT1 frustrating_JJ exercise_NN1 that_CST recalls_VVZ the_AT days_NNT2 before_CS most_DAT homes_NN2 had_VHD rooftop_NN1 antennas_NN2 or_CC cable_NN1 ._. 
While_CS multipath_NN1 is_VBZ DTV_NP1 's_GE Achilles_NP1 '_GE heel_NN1 ,_, the_AT problem_NN1 is_VBZ restricted_VVN to_II a_AT1 small_JJ portion_NN1 of_IO the_AT 15_MC percent_NNU of_IO American_JJ households_NN2 not_XX subscribing_VVG to_TO cable_VVI or_CC satellite_NN1 service_NN1 ._. 
Although_CS there_EX is_VBZ something_PN1 to_TO be_VBI said_VVN for_IF commercially_RR supported_VVN "_" free_JJ "_" TV_NN1 ,_, more_RRR HDTV_NP1 programming_NN1 (_( including_II premium_JJ movie_NN1 ,_, sports_NN2 and_CC nature_NN1 channels_NN2 )_) is_VBZ already_RR available_JJ by_II subscription_NN1 only_RR than_CSN from_II over-the-air_JJ DTV_NP1 ,_, and_CC the_AT gap_NN1 will_VM likely_RR increase_VVI ._. 
Dual_JJ Broadcasts_NN2 Until_II d-day_NNT1 ,_, over-the-air_JJ stations_NN2 will_VM continue_VVI to_TO simulcast_VVI analog_NN1 and_CC digital_JJ signals_NN2 on_II their_APPGE two_MC allotted_JJ frequencies_NN2 of_IO 6_MC MHz_NNU apiece_RA --_NN1 the_AT federal_JJ government_NN1 has_VHZ given_VVN stations_NN2 the_AT extra_JJ space_NN1 for_IF digital_JJ during_II the_AT transition_NN1 period_NN1 ._. 
The_AT DTV_NP1 frequency_NN1 lets_VVZ broadcasters_NN2 do_VDI something_PN1 they_PPHS2 could_VM not_XX do_VDI with_IW analog_NN1 :_: multicast_VV0 several_DA2 programs_NN2 at_II the_AT same_DA time_NNT1 ._. 
Whereas_CS a_AT1 station_NN1 might_VM choose_VVI to_TO allot_VVI the_AT entire_JJ 6_MC MHz_NNU to_II high_JJ definition_NN1 ,_, it_PPH1 could_VM instead_RR transmit_VVI several_DA2 channels_NN2 in_II standard-definition_JJ digital_JJ ._. 
One_MC1 standard-definition_JJ channel_NN1 could_VM be_VBI accommodated_VVN around_II the_AT clock_NN1 --_NN1 even_CS21 when_CS22 the_AT station_NN1 is_VBZ carrying_VVG the_AT network_NN1 's_GE HDTV_NP1 programs_NN2 --_NN1 without_IW a_AT1 significant_JJ degradation_NN1 in_II quality_NN1 ,_, the_AT National_JJ Association_NN1 of_IO Broadcasters_NN2 claims_VVZ ._. 
Those_DD2 consumers_NN2 whose_DDQGE signals_NN2 travel_VV0 by_II cable_NN1 still_RR will_VM not_XX escape_VVI analog_NN1 after_II 2009_MC ._. 
Operators_NN2 would_VM like_VVI to_TO go_VVI all-digital_JJ because_CS viewers_NN2 prefer_VV0 watching_VVG the_AT high-definition_JJ version_NN1 of_IO a_AT1 channel_NN1 if_CS available_JJ ._. 
Not_XX only_RR does_VDZ an_AT1 HDTV_NP1 program_VVI 's_VBZ wide-screen_JJ format_NN1 fit_VV0 their_APPGE new_JJ TVs_NP1 '_GE 16:9_MC aspect_NN1 ratio_NN1 ,_, not_XX to_TO mention_VVI their_APPGE old_JJ pair_NN of_IO eyes_NN2 ,_, better_RRR than_CSN standard_JJ definition_NN1 's_GE 4:3_MC shape_NN1 ,_, but_CCB they_PPHS2 also_RR can_VM pick_VVI out_RP much_RR more_DAR detail_NN1 ._. 
If_CS CSI_NP1 's_GE mantra_NN1 is_VBZ to_TO follow_VVI the_AT evidence_NN1 ,_, then_RT HDTV_NP1 's_GE two_MC million_NNO pixels_NN2 (_( on_II a_AT1 1920_MC x_ZZ1 1080_MC screen_NN1 )_) point_VV0 the_AT way_NN1 ._. 
The_AT rising_JJ demand_NN1 for_IF high_JJ definition_NN1 has_VHZ ,_, however_RR ,_, already_RR become_VV0 a_AT1 problem_NN1 for_IF cable_NN1 and_CC satellite_NN1 operators_NN2 ,_, who_PNQS have_VH0 a_AT1 finite_JJ amount_NN1 of_IO bandwidth_NN1 to_TO divide_VVI among_II various_JJ channels_NN2 and_CC services_NN2 ._. 
It_PPH1 does_VDZ bother_VVI me_PPIO1 a_RR21 little_RR22 that_CST all_DB the_AT cursing_NN1 I_PPIS1 sometimes_RT do_VD0 in_II my_APPGE keynotes_NN2 is_VBZ going_VVGK to_TO become_VVI part_NN1 of_IO my_APPGE story_NN1 ,_, yet_RR I_PPIS1 have_VH0 to_TO embrace_VVI it_PPH1 because_CS that_DD1 's_VBZ just_RR how_RRQ my_APPGE DNA_NN1 expresses_VVZ itself_PPX1 when_CS I_PPIS1 'm_VBM onstage_JJ ._. 
I_PPIS1 want_VV0 to_TO be_VBI proud_JJ of_IO what_DDQ I_PPIS1 do_VD0 ._. 
