Blitzgiving - S6-E10
Trivia: During this episode we see a character called 'Blitz' who is played by Jorge Garcia. Jorge played the character Hurley on Lost. In the flashback of the events when Ted left the bar, Marshall asks everyone to shout out some random numbers. Jorge shouts out the numbers: 4, 8, 15, 16, 23 and 42. The exact same numbers that are a key point of Lost and the numbers Hurley played to win the lottery.