The One Where Underdog Gets Away - S1-E9
Corrected entry: In this episode, when Chandler is telling Rachel his Thanksgiving story, he says that he had just had a mouthful of pumpkin pie when his parents told him they were getting divorced. However, in 'The One With All The Thanksgivings', in the flashback, Chandler is eating turkey when they tell him (hence the houseboy saying 'more turkey Mr. Chandler?').
Correction: The actual scene where Chandler gets the news of his parents divorce was not seen in that flashback. In the scene, Mrs. Bing says "Just because your father and I are getting a divorce...", indicating they already told him.
Brad ★