Leonard: (while playing Pictionary, Sheldon draws a polish sausage and the solar system) Sausage? A solar system? Uh, uh, uh...Unidentified flying liverwurst?!
Sheldon: (trying to beat the girls at "Where's Waldo") How could you not find him?!
Leonard: Because he's hard to find! If he was easy to find, the books would be called "There's Waldo!"
This episode's end titles have Chuck Lorre's Vanity Card #394 (part 1).
Original International Air Dates:
Canada: October 18, 2012 on CTV
United Kingdom: December 6, 2012 on E4/E4 HD
Turkey: September 9, 2013 on CNBC-e
Finland: December 4, 2013 on Sub