I've posted this elsewhere. You don't need an inverter to watch TV. You need a 12-14 volt TV. I have a 19 in. Samsung I got at Walmart. It's made to plug into 120 volt and had a transformer "brick" attached to a cord (like a lap top computer). Cut the brick off and wire direct to the battery(s). Low voltage TVs are not that easy to find. When in a store, look behind them at the power cord. If there is a brick it's a low voltage DC TV.
The power cord from the brick to the TV is like a small co-ax cable. The outside conductor is the negative; the inside conductor is the positive. Before the Samsung I had a Vizio. It worked, but I didn't like the way it operated. Try to find a TV that draws less than 40 watts. They are out there. They cost less than the price of an inverter (less than $200).
Inverters rob you of precious DC current. :)
P.S. For those less in the know about how RV wiring works, your low voltage TV will operate with or without shore power. You don't have to do anything by turn it on. Your converter will not allow 120 volts to reach the battery.
