10 More Annoying Mistakes You Never Noticed In Friends
4. Joey Was There Before He Moved In
In "The One With All The Thanksgivings" in Season 5, there is a flashback to Joey getting his head stuck inside the body of a turkey. During the flashback it says that it is during the Thanksgiving of 1992.
However the show aired in 1994 and in "The One With The Flashback" in Season 3, we see Joey first move in to the apartment. The flashback was supposed to have been a year before the show started, so he would have moved in in 1993. So Joey couldn't have been at the Thanksgiving in 1992, since he didn't know any of the main characters before he moved in with Chandler.