Yes those Dimensia TVs are indeed very impressive. Years ago, in the small town where I grew up, I remember a guy having the 1984 version of the Dimensia TV and all the original Dimensia system stereo components. He pretty much had everything except the videodisc player. It was a very impressive setup and was the first time I ever saw a linear tracking turntable that opened up like a drawer when you wanted to play a record. The early Dimensia TVs had a system control computer in them that could talk to all the stereo components which made the system very easy to operate. I've been wanting to assemble my own Dimensia system for a long time but have NO ROOM!!!
Here's a web page with good information about the system.