Plot hole: In the episode where Jessica went home to her family's house in season 2, Bill said "someone who lives here must invite me in." In this episode, Russell Edgington's wolf (Coota) invites Russell into Alcide's apartment. Also, in Season 6 Sarah Newlin recinds Jessica's invitation into Jason's house (which only Jason should be able to do).
True Blood (2008)
2 plot holes - chronological order
Starring: Anna Paquin, Stephen Moyer, Ryan Kwanten, Alexander Skarsgard, Rutina Wesley, Sam Trammell
Cold Ground - S1-E6
Continuity mistake: When Sookie is eating Adele's pie, the amount of pie on the fork keeps changing between shots. (00:41:25)
Sookie Stackhouse: That's GRAN'S pie.
If You Love Me, Why Am I Dyin'? - S4-E3
Trivia: At the very end, Sookie is waiting for Eric. She is reading a Charlaine Harris novel. Charlaine Harris is the author of the Sookie Stackhouse series.
Question: How could Eric and Godric be hunting the werewolf pack in 1945 without Pam, who we later learn is made in 1905?
Answer: Pam doesn't have to be with Eric 24/7.