I originally had a 27" analog TV mounted in the front, I initially replaced with a 26" Sony LCD, it worked OK but I found a good deal on a 32" LED that fit in the same footprint as the original TV. Since it was very thin on the edges it didn't protrude much past the side pieces. If I tried to go bigger I wouldn't be able to open either of the side cabinets.
The TV I bought was a return at Sam's club and I saved a bunch, they also had an open box special on a swing out wall mount. I found a piece of ~1.5" aluminum baluster at Lowes (on clearance
).
I had to determine the right distance side to side to mount the baluster so that the TV & mount would be in the right position. I used some brackets to mount the top of the baluster to the metal cross member in the motor home and the decorative base to secure the bottom. I then mounted the TV mount at the right height. The TV mount had a swivel head so that I could make it align to the slope of the front cabinet.
I decided to make the TV secure while traveling by using screen door clips that you turn to release the TV. [The first TV I mounted had the back plastic support fail from the bouncing, it was a heavier TV but I think any TV would have a problem if it wasn't supported. ] The TV swings out which provides better viewing from the kitchen table or couch. I can also swivel enough to watch TV while sitting outside (if I want).
I put a shelf in behind the TV so I can store CD's of DVD's on it and then more storage below. We keep a set of binoculars in there also and misc electronic connectors. When the TV is placed in travel mode it is very secure and nothing behind it can fall out. There is a fair amount of storage behind the TV.
To finish out the opening I had a piece of ceiling material. I made a cover to fit on the inside of the cabinet to cover the opening, I put a piece of fiberglass insulation across the front prior to doing this to help reduce the amount of heat generated from the sun. I then took a board cut to the proper dimensions and put a layer of ceiling material on it and mounted it across the top, since it's the same color of the ceiling material it provided a finished look.
Here are some pictures