Never heard of DTV, but just got a 7" digital TV for Xmas. Runs off an antenna. So far OK-ish reception, kind of finicky at the airport,but good in town. Lots of channels that wouldn't be typically available over broadcast TV (like 7a, 7b, etc), but still probably only got 10-15 channels.

Rechargable, runs off 110 and 12V systems.