I'll look around for a Dimensia manual, I think I saw one at a TV shop in West LA.
The KX "PROFEEL" component TV series was Sony's flagship line in 1981, and I think up to '83. They came in 3.7" (KX-4200), 12" (KX-1211HG), 19" (KX-1901), and 25" (KX-2501). The monitor was just the monitor, and you could get two versions of matchin tuner boxes for it (VTX1000R and VTX-1100R). Also, you could get all kinds of factory accessories for it including MPX box (sets were stereo-ready but not full stereo), matching stands, and 4 or 5 versions of matching speakers. They were probably among the best TVs ever made, and most are still working. Sadly, the bigger ones are worthless. Saw a free one on CraigsList yesterday....
I put a post here about them a couple months ago:
http://audiokarma.org/forums/showthread.php?t=63735
I have a 19" and a 25" that I'd let go of for a nominal price, to a good home.
Charles