Last of the Roundies?

[Greg B.]

Aside from the fascinating Westinghouse whose resto was documented earlier this month, I am curious as to the chronology of when roundie sets began to be phased out by manufacturers and when the last ones were produced. Part of this is an attempt at trying to clear up a hazy recollection I have from when I was a kid.

What I remember is reading an issue of one of the small-format magazines I liked back in the late 1960s -- Popular Mechanics, Popular Science, and the like. There was a small piece in their news section noting that one TV manufacturer -- Philco, perhaps? -- was reintroducing a roundie set because it could be sold at a lower price point than the then-common rectangular tube sets. I'm thinking this would be from around 1968 or so.

Anyone remember this? I presume these would be the last roundies made but I could be wrong. Any info would be most appreciated.