different between atsc vs dtv

atsc

atsc From the web:

• what is atsc 3.0
• what is atsc tv
• what is atsc tuner
• what is atsc 3.0 tuner
• what is atsc 3.0 next gen tv
• what is atsc 3.0 tv
• what is atsc signal
• what does atsc 3.0 stand for

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dtv

dtv From the web:

• what dtv means
• what tv show should i watch
• what tv to buy
• what tv show has the most seasons
• what tv show has the most episodes
• what tv shows have been cancelled
• what tv show should i watch quiz
• what tv shows are on cbs tonight