Ron,
I don't know how small a TV you can get that would be somewhat near scale but admittedly I don't keep up with electronics these days to know what you have available that would fit. I am getting ready to begin construction of a drive-in movie for my layout.
I am using a Sony portable DVD which my wife doesn't need any more (or so I convinced her she didn't need). You can download tons of old drive-in movie clips for intermissions, countdown till movie start and concession ads that it is fairly easy to put a decent video together which adds to the realism.
In addition to the Plasticville turnpike plaza one member has suggested, I am using a plasticville switch tower for the projection building. I am also going to try my hand at kitbashing 2 plasticville ice cream stands into a food concession stand. All 3 structures will be illuminated. The projection building will have a flickering led.
The holdup in construction is trying to figure out the best way to combine the 2 stands into 1 larger concession stand. I have never kit bashed anything before so I am a bit leary of attempting it for fear of ending up ruining 2 perfectly good buildings with nothing to show for it. I might just decide to go with the 1 building.
As Walt recommended you can find some great tips and examples via the search option. There are lots of good ideas out there.
Good luck,
Ed
