Friends

Joey's statue of a white dog was originally given to Jennifer Aniston as a good luck present from her best friend when she started acting. She offered to lend it to the show for the episode where Joey became rich and bought a lot of stuff. After that episode, the producers decided to keep it.

In the opening credits to Friends: The One After Vegas (1999), all of the names in the opening (actors and crew) were changed to have "Arquette" at the end of them, a gag on Courteney Cox Arquette who had just recently married David Arquette.

Courtney Cox added Arquette to the end of her name after her marriage to David Arquette between seasons five and six. Her father, Richard L. Cox, died in 2001 and during the midst of the seventh season, she dropped the Arquette in her father's memory.