Recently, IaskedtheBuzzFeed Communityabout the most annoying continuity errors they’ve spotted in long-running TV shows.

Here are 13 of their top answers:

Warning: Spoilers ahead!

“OnGilmore Girls, Jacksons last name was Melleville, then it turned into Belleville.”

In Season 1, Jackson introduces himself as Jackson Melleville, and in Season 5, Sookie announces him as Jackson Belleville

smileyk

2.

“[OnFriends] character birthdays change dates a lot.

It’s very annoying.”

In Season 4, Ross says his birthday is in December, then in Season 9, he says it's October 18th

puss_pastry

3.

“I loveFriends, but they had a lot of continuity errors.

pnw1985

5. fancytoaster14

6.

In Season 1, Monica introduces Rachel and Chandler, and in a Season 5 flashback, Ross introduces Chandler to Rachel and his family in college

“Drives me crazy every time I rewatch the series!”

jcd3811

7.

“InModern FamilySeason 1, Phil tells Claire that he sang ‘their song’ at their wedding.

In Season 1, Jake says Holt's tell is that his mouth moves, and in Season 5, he says Holt's tell is using lots of contractions

Kristen Harris

8. chichirimuyo

9.

“OnFull House, Uncle Jesses last name changed.”

nothxxxxxxx

10. emocrab35

11. kbbpll

12. npk369

Note: Some responses have been edited for length/clarity.

In Season 3, Rose says she was valedictorian, but in Season 4, she says she never officially graduated

on Season 4, Episode 15, Tony tells Jeanne he loves her over the phone, then in Episode 18, she's upset he hasn't said I love you back to her

In Episode 8, Phil says he sang at their wedding, and the Episode 23, Claire says they didn't have a proper wedding

In Season 1, Leonard tells Sheldon it was his idea to go to the sperm bank to make extra money, and in Season 2, Sheldon offers Penny cash

In Season 1, Stephanie calls Jesse Mr Cochran, then in Season 2, the wedding officiant calls him Jesse Katsopolis

In Season 1, Donna stops Fez from hitting on Tina, and in Season 2, the narrator asks what happened to Midge's daughter, Tina

In Season 1, Barney calls Andy his cousin, then in Season 4, he says they've been friends since fourth grade

In Season 1, Selina says Gary studied science at UVA, then in Season 5, he says he hs a bachelor's in hotel management from Cornell

In Season 6, Cory talks to baby Josh in the hospital, and in Season 7, he holds hands with Josh, who's old enough to walk