Ellen
A full list of special holiday episodes
Comedian Ellen DeGeneres stars in this sitcom as a bookstore owner juggling relationships, work, and life with her quirky group of friends.
The show aired 3 Christmas episodes, 1 Thanksgiving episode, and 1 Halloween episode.
Christmas episodes:

Season 2, Episode 12
The Christmas Show
Ellen attempts to end her relationship with her boyfriend Greg before Christmas, but finds herself singing carols at his house instead. Meanwhile, Joe's rocky relationship with his girlfriend is affecting their work at the store.

Season 3, Episode 12
Do You Fear What I Fear?
Ellen invites Spence to spend Christmas with her parents, but they have to leave town, leaving her with an unexpected gift: a cemetery burial plot.

Season 4, Episode 12
Fleas Navidad
Ellen and Paige plan a Christmas trip to Mexico, leaving Joe and Audrey to run Buy the Book. Ellen decides to stay in town to care for a stray dog she found, but her father Harold mistakes it as a gift and takes it home with him.
Thanksgiving episodes:

Season 4, Episode 10
Kiss My Bum
Ellen and Ed volunteer at a soup kitchen on Thanksgiving and invite a homeless worker named Perry over for dinner. Spence's mother meets Paige for the first time, and Peter misses Barrett.
Halloween episodes:

Season 3, Episode 6
Trick or Treat - Who Cares?
On Halloween, Ellen tries to lift Spence's spirits as he dwells on his failed career. Paige struggles with a movie assignment, and Joe is unnerved by Audrey's presence, who mistakenly thinks she got hired at Buy the Book.