What we got was a LED TV that runs off one of those transformers that plug into the 120v outlet (like lots of electronic equipment these days). With this particular TV, the little transformer converts the 120v AC to 12v DC. For a couple of bucks at Radio Shack, I splice a cigarette style 12v plug into the power cord, so now I can plug it into either the 120v AC plug or the 12v DC outlet. Inherently, using the inverter would use up more 12v power than hooking it up directly to DC as there is a loss of efficiency converting the 12v DC to 120v AC. Our 19" unit draws about 3 amps DC. Before this, we had a 13" tube TV that drew about the same amount of DC.
Bill and Kate
Stone Harbor, NJ
2005 Jayco Jay Feather 29N (Salty Dog House)
2005 Ford/Quigley 4x4 E350 Van 6.0 TD (Moby)
Reese Pro Series SC Hitch