J. Randall Murphy
I think you are probably right about the monitor feed. For color TV in general, I must have just been lucky to have always had one except when I was less than 7 years old. But even still, looking back, there are other oddities about television shows, like the voices of some characters seeming to change from what I remember. My grandparents getting a color TV when I was about 7, which would have been in about 1964.They look like DiMarzios for sure, hard to tell as the sound on the video is really poor sadly.... As for black and white the 70's was that odd time where black and whit TV and broadcast still existed in some places, hell New Zealand did not get colour TV until 1974 British Commonwealth Games hahaha.
On second thought the black and white stuff maybe from the monitor feed which would explain some of the low quality of it in the video... this is the feed the director and cam ops would be seeing as they film.. not normal but I have seen those lines get messed up before and end up on the beta tape when I did stuff for broadcast.
Not one for Wiki as you know but some stuff is fine...
I don't remember any B&W cartoons, B&W Disney shows, B&W Star Trek episodes ( except the pilot which I saw years later ) or anything else except old reruns of Gomer Pyle or Andy Griffith in B&W. I also remember the pictures being really clear, not like the blurry stuff we often see on Youtube. But then there are the exceptions, so it's likely just timing and a combination of other mostly explainable factors.
Now back to our regular programming ...
Any Yet Another Version Of The Classic - Tubular Bells