I used to drag the lap top along for DVD viewing but soon stopped that. I didn't like that it took up table space. The only other likely spot was the stove top, but I usually have it playing while cooking dinner and moving it back and forth from the dinette table to the stove stop is a nuisance. I don't really use the PC for anything else while travelling so I leave it behind.
I definitely didn't want to carry both a TV and
a player so a separate DVD player wasn't an option.
I do a fair amount of boondocking
so squeezing the most amps out of my battery
was a goal so running an inverter and it's built in inefficiency didn't appeal. Plus, I
at the prospect of turning 12v to 120v so that the "brick" transformer could turn it back again to 12v for the TV. I run off of 12v even when the trailer is plugged in.
CRT TV's don't use all that much current, but LCDs are better. CRT's are bulky and my aging eyes need something fair sized. I went with a 12" TV/DVD. Plays CDs and MP3s on a CD.
Playing a movie only uses a little under 2 amps DC an hour on my Audiovox. It's hung under the overhead storage in the back corner over the foot of the bed. It swivels so that I can watch in a reclined position. Although I'm like one of those dolls... if I go horizontal, my eyes close.
For what it's worth, I believe some TVs use 9v DC. I assume that when they run off of 12v, the conversion to 9V is in the 12v plug. It's a minor transformation (DC to DC) so it doesn't have to be one of those "bricks". I offer this because going to the Shack for a cord in these cases may not work. Getting the TV vendor's supplied 12v cord is the safest, if not always the cheapest, option.