Friends Season 4 Episode 19 : The One With All The Haste
Monica and Rachel have Knicks season tickets and offer them to the guys if they give them their apartment back. Chandler doesn't trade but Joey wants to. They play a game with Phoebe as the judge on picking the highest card out of a deck of cards and the winner take all. The guys win, so they set off to watch the game. While Chandler and Joey are at the Knicks game, Monica and Rachel switch the apartments back, despite the guys winning the tickets and the right to keep the apartment fair and square. Ross proposes to Emily and she accepts.