Friends (1994)

The One Where Ross Finds Out - S2-E7

Continuity mistake: When Rachel finds out that Ross and Julie are getting a cat, watch Rachel's neck. When she says "together?" she's not wearing a necklace; cut to Ross and Julie for a fraction of a second, then when it cuts back to Rachel saying "both of you?" she's suddenly wearing a necklace. It then disappears again when she says "isn't that just lovely?" hanging off the side of the tray she's holding. (00:05:15)

The One With The 'Cuffs - S4-E3

Joanna: What are you doing?
Chandler: I'm getting dressed.
Joanna: Why?
Chandler: Because when I go outside naked, people throw garbage at me.

Trivia: Matthew Perry's wit is so legendary that the scriptwriters have often incorporated his gags into the show.

The One With The Dirty Girl - S4-E6

Question: When Joey asks why he can't give Kathy the pen, Chandler says, "Because she's not eleven. And it's not the seventh night of Chanukah." What is Chandler talking about when he says, "It's not the seventh night of Chanukah?"