Ivana reads Shawn's thoughts and says, "You're thinking whether Ted Knight and Jim J. Bullock had anything to talk about on the set of 'Too Close for Comfort.'"
Shawn asks, "Where the hell are we?" Gus then adds, "*When* the hell are we?" This references "Back to the Future," when Doc Brown says that the appropriate question to ask when Einstein disappears one minute into the future is "When the hell is he?"