This was from the original Dick Purtan show in the 1980s. I'm barely old enough to remember it, but, alas, I do remember it. In fact, I believe it was unveiled the week of the 1986 Harbaugh guarantee game.
(I could be wrong. It could be older than that, but I really remember it then. That's the time when I really became interested in college football and for some reason, I still remember it from that year and that incredible game.)