There have been two television appearances since then; the 1984 tournament semi-finals and finals aired on NBC, hosted by Pat Sajak (of Wheel of Fortune fame), and the entire 1987 tournament on Disney Channel, hosted by Dick Cavett. The Univ of Minn won both iterations.
This is the 1984 final mentioned above;
Princeton vs. University of Minnesota
College Bowl 30th Anniversary (1984) (TV)
Host: Pat Sajak