in college and the NFL combined in the Super Bowl era. Montana and Joe Namath are the only two starting QBs to win both the college football NC and the Super Bowl, and only Montana won his NC in a bowl game. (Namath's 1964 Alabama team was voted NC after the regular season but lost the Orange Bowl to Texas; no post-bowl polls were conducted. Tom Brady was a backup QB on Michigan's 1/2 championship team in 1997.)
Montana and Terry Bradshaw are the only 2 QBs to start for 4 Super Bowl champions. So Montana has a total of 5 rings, more than any other QB, and each of which he wore in that AT&T commercial.