In the even more obscure trivia section of things you remember seeing on TV...
During the run of Sanford And Son, "Grady" was doing a week-long stint on
Hollywood Squares. On a day I happened to be watching, a contestant chose
him, but referred to him as "Mayo Whitman."
Peter Marshall quickly and matter-of-factly jumped in to correct her, and the
show went on unscathed (no retake, obviously--this was daytime).
There is no truth to the rumor that in the next break, the first spot was for
Hellman's mayonnaise (known as, and cut-ins run for, Best Foods west of the
Rockies). I just threw that one in...you can also insert your Peter Graves on
the white courtesy phone in Airplane joke here. ;D