 " Episode 6 " , also known as " Realization Time " , is the seventh episode of the first season of the American mystery television series Twin Peaks . The episode was written by Harley Peyton , and directed by Caleb Deschanel . " Episode 6 " features series regulars Kyle MacLachlan , Sherilyn Fenn and Eric Da Re , with guest appearances by David Patrick Kelly , Kimmy Robertson and David Warner . The episode is set in the fictional town of Twin Peaks , Washington , and introduces the character of Major Garland Briggs . " Episode 6 " was first broadcast on the ABC network on May 21, 19