1x02: Badge! Gun!
4x12: The Bookstore
4x11: The Geographic
4x09: Shrink and Kink
4x08: Dave's TV Show
4x06: Sobriety Bush
4x05: Marc in Florida
4x04: The 13th Step
4x03: The Field Trip
4x02: Marc's Roommate
3x12: Cold Turkey
3x11: Steel Johnson
3x10: Patent Troll
3x09: Anti-Depressed
3x08: Professor of Desire