I just saw the new forum names and descriptions after being away for a week. The new divisions are close to exactly what I would have picked. I think of the dividing lines of TV sets (in the USA) between "early" versus "mainstream" as matching the change from round CRTs to rectangular ones, in both the color and B&W worlds, and that is more clear now. The only other change I could recommend would be to maybe split the rectangular-CRT tube forum into B&W and color forums, since those were generally two different eras.
In any case, three forums or six (or more), I am always going to at least check the topics in all of the TV ones.