I got that copy of the 12/20/62 Andy Williams show from a collector in New Jersey who's a collector of Andy Williams shows. It's a very beautiful and awesome show
Oh, silly, NBC inserted B&W commercials into the breaks though-Oh
Now, on to the CBS Color ID, it went like this-
bing C, bing B, Bing S, CBS Presents This Program In Color and was used from September, 1965 to the end of August, 1968.
The ABC Color ID was only used from September, 1965 to the end of August, 1966. However, ABC had In Color built into the opening credits of it's shows and as a slide before it's show until summer, 1971 I believe.
The NBC Peacock was first a slide introduced in September of 1956, then the 1st animated NBC Peacock appeared September, 1957 on Your Hit Parade the the last NBC Peack in 2 variations appeared September, 1962 on Laramie and was used until August, 1975 on The Tonight Show w/Johnny Carson.
There's your history of the In Color IDs of the big 3