The other $2 set I found
 

I got this at the same place I got the 1974 Zenith, it's clean as a whistle.

Pretty much similar to the other 4.5" cheapies I've picked up with one difference, this one was made in Korea, the CRT is a Samsung so presumable the whole set is, it seems to be just a notch or two higher in quality than most.

It had a blown fuse, probably from plugging an adapter in that was the wrong polarity, this is the only one like this I've seen where the center pin is Negative.
I rewired a wall wart for it and it works fine.

The base can also be installed on the top for mounting it under a cabinet, of course sets like this are the most useless of all now.

I was able to pick up two UHF stations today, one was in Spanish and was probably out of Mexico, the other was in English and was running an infomercial for some quack medicine, that one seemed to go off the air at 6:00pm PST.