'I Remember the Coatroom, I Just Don't Remember You' - Season 1, Episode 19
Judith's sister, Liz, hits on Alan at Jake's birthday party; Evelyn prefers alcohol to cake.
Air Date: March 21st 2004.
Alan: Judith's sister is hitting on me.
Charlie: She's not hitting on you, she's hitting on her sister's ex-husband.
Alan: But that's me!