I'm sure my set probably has UHF in there somewhere. It has a lot of interesting attachment plugs for various things such as a remote control of some sort, and also "Phonevision" which was the world's first pay-per-view system, exclusively from Zenith:
http://en.wikipedia.org/wiki/Phonevision
A great deal of that black plastic stuff has deteriorated throughout my set, especially around the yoke there and also around the back of the picture mask which resulted in little annoying crumbs of plastic falling between the face of the CRT and the glass. There were shards of black plastic everywhere in that set when I first got it, along with flakes of aquadag that fell off the CRT.
I had the ion trap moved back in an effort to fill out the picture which was leaving the bottom quarter of the screen black, which did help but I gave up knowing full well there was more to it than that. I'd like to figure out something I can put over the back of the yoke in place of that plastic stuff. I wouldn't mind getting that stuff out of there completely, especially around the picture mask.
Anyways, here's a look at the labels around my old CRT:
Oh... and check out these rather colorful plastic pieces that support the CRT:
When I first took this thing apart, I seriously thought those looked like they were made out of marble or something...