Just happened upon this:
E! Entertainment Television Apr 10 07:00pm
Episode #92.
Host Richard Dreyfuss; Jimmy Buffett; Gary Tigerman.
Cast: Dan Aykroyd, John Belushi, Chevy Chase, Jane Curtin, Garrett Morris, Bill Murray, Laraine Newman, Gilda Radner.
Original Airdate: May 13, 1978.
Future Airings:
Saturday Night Live, ETV Apr 11 07:00pm