I remember watching the NBC peacock on our black and white TV. They broadcast the living color announcement because not all the shows were in color.
Speaking of NBC, do you remember the NBC tones on the radio? And the weekend radio show called “NBC Monitor?” I used to listen to radio at night, to all the commentators and radio shows. There was no problem listening then (late 60s, early 70s), as the shows never got into things they shouldn’t.