Chromacolor space command
That first Zenith Chromacolor you have there is almost identical to the one I have in my bedroom! Mine however is installed in a modern style cabinet that has a swivel pedestal. It also has the "space command" ultrasonic remote. With that system, the tuning dials are installed behind a flip-open door that has two large black squares similar in size to the ones around your tuning dial. There's also a lighted indicator on the front of the door, inside the squares to show which channel is being viewed. Zenith was smart enough to make the numbers large enough to see across a room. The set is a "Hybrid" containing tubes only for the high-voltage sections, High voltage rectifier, focusing rectifier, horizontal out, damper, vertical output, and a 3 element tube for driving the 3 electron guns. Everything else is solid state like the tuners, IF, color decoders, sound output, sync, and oscillators.
The remote has six buttons on it Volume/power up & down. The controls are mechanically motorized with little servo motors. you push the volume up button to click it on, and then hold it till it's at the desired volume. To turn it off, you hold down the volume down button till the volume goes all the way down and it clicks off. The VHF and UHF tuning functions through the other 4 up & down buttons. To receive UHF channels, you tuned the VHF tuner to the UHF setting, when you did that, you knew it because the indicator light would come on the UHF tuner. You then used the up & down to dial in the desired channel. The UHF tuner didn't "click" to each channel. but instead just rotated smoothly.
The picture on this set is quite nice! Especially after it was given a full convergence job and a set of fresh tubes.
That other, 80's vintage Zenith in the modern cabinet is also a nice television too. They had a spectacularly sharp picture and a tuner that would pull in some amazingly weak stations. My parents had a tabletop model of that set, and I remember that it would pick up Norfolk, DC and Charlottesville stations occasionally. Ours also had a video input so that we could hook up the commodore computer and play video games!
You've got quite a nice haul there! Where'd you find all those fun console TV's?