Couple of thoughts to add...
Miller Engrg (Chris) once had a functioning drive-in theater kit in at least a couple scales...HO, I'm sure of. It featured the neat entry sign with chase lights, etc. (still available, I believe). It disappeared from Miller's product line after they lost their source of LCD screens. For a while there was some hope it might come back if a new supplier could be secured. Then, later, in talking with Chris at a York meeting a couple years ago, the whole concept/effort was dropped. Nonetheless, today's inexpensive portable DVD's make re-creation of the main screen not that difficult a job, as earlier postings have suggested.
Second thought...re B/W TV scene recalled... I believe that was in the infamous, ubiquitous Bantam book "Model Railroading" from the 50's showing pictures of the Rochester Police Boy's Club layouts (sic)....you know, the four seasons layouts, one of which had an ol' B/W boob-tube TV buried in the side of a mountain with an array of autos before it....voila!..a drive-in theatah!
More recently, tho', there's been several nifty scenes either from the pages of OGR, CTT, or from the Sunday photo spreads on this forum.
I always thought it was a dandy way to make use of the over-abundance of diecast convertible models of autos. The only thing lacking was a variety of PG-13 to R-rated (or ?-rated ) couples 'enjoying' the movie () in the convertibles. I mean, Dennis (Arttista) could create a whole new series for this concept!.....eh??
KD