The One With The Dirty Girl - S4-E6
Corrected entry: When Ross is kissing the dirty girl on her sofa, he calls her Sarah. Then, when he kills the rat on her coffee table and thinks it was her hamster, he calls her Shelley.
The One With The Dirty Girl - S4-E6
Corrected entry: When Joey slides the gift for Kathy across the bar, you can see in the bathroom that a towel is hung over the shower curtain rod, however in the shot when Chandler is saying goodnight to Kathy, the towel is gone. No-one went into the bathroom.
The One With The Dirty Girl - S4-E6
Corrected entry: In the very first episode, Chandler says that between him and Joey they haven't had a relationship that lasted longer than a Mento. In this episode however, we find out that Joey went out with Angela Delveccio for three years.
Correction: Actually, he calls her Cheryl both times, which is the correct name of the character played by Rebecca Romijn.