Back in the 80's I used to work for RCA Smirnoff Labs, and we had acquired in around 1986 a Zenith set that looked a lot like that. To see what our competition was doing.
The bosses were looking at it, I didn't get a chance to mess with it. Think Zenith was about to be bought by some Korean company then.
At the same time RCA was kicking around making a 32 inch CRT. We had a prototype, but someone managed to burn its heater out...