Glad to know I'm not the only one who watches shows and tries to figure out what type of set is being shown. I also remember Sam & Durwood having a roundie, but didn't catch the mid-episode switch. I guess if they can switch a main character without explaining it, they can do the same for a TV set!
It's sort of interesting to think, and perhaps I've been seeing too many black helicopters

, but did you ever notice that every sit-com is filmed from the Television's point of view in the room?
Is anyone else annoyed when the back of a console set is shown, yet it has no vent holes, crt neck or wires?
BTW, I was the person who mentioned the Beverly Hillbillies episode where everybody thought the new TV that Mr. Drysdale gave them for Christmas was a clothes washer. As I recall, this was an early B&W episode.