David Steinberg is shown at the concert at Toronto's York University, whipping through routines keyed to a college audience. He delivers some one-liners, a few homilies on politics, a recollection of early non-sex, a bit about writing exam papers in utter ignorance of the topic and ends up with John Candy in a skit about a psychiatrist. Also included is a hilarious take-off on the award- winning film "My Dinner With Andre," entitled "My Dinner With Duddy." Mr. Steinberg and Mr. Candy, big-time comedians, meet in a delicatessen and exchange heartfelt inanities about creativity, soberly paralleling the real thing.