Future Mary Hartman, Mary Hartman regular Greg Mullavey appears as Mike's "intellectual" friend, Stuart Henderson. Inviting Stuart to dinner, Mike works overtime trying to impress his guest with his own range of knowledge. As a result, poor Gloria is deliberately excluded from the conversation, making her feel like a mental midget -- and, inevitably, setting the stage for another argument. Written by Roger Shulman and John Baskin, "Mike's Friend" originally aired on December 14, 1974. ~ Hal Erickson, Rovi