7. The One After 9/11
Before the 9/11 attack there was a scene where Monica and Chandler were interrogated in the airport. This episode was set to air a week after 9/11. It would have been poor timing to air the scenes.
8. The one with Ursula
9. Phoebe’s pregnancy
The storyline of Phoebe having her brother’s babies was thought up when Kudrow announced her real-life pregnancy. Courtney Cox also became pregnant in the last season, but it had already been decided that Monica and Chandler would not have kids. The makers decided to hide Courtney’s pregnancy.
