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)
Episode list - season 4
Starring: Anna Paquin, Stephen Moyer, Ryan Kwanten, Alexander Skarsgard, Rutina Wesley, Sam Trammell
More mistakes in True Blood
Eric Northman: I've seen your website... it's very low rent.
Trivia: In this episode, when Sam is talking to Sookie in his office asking if she can hear his thoughts, he tells her she always has a job working at Merlotte's. Once Sookie leaves the office, the camera pans to a painting on the wall of a dog protecting the little girl. It is kind of a foreshadowing that Sam is a shapeshifter (he shifts into a dog) who is always looking out for Sookie and she is not even aware of his supernatural ability.
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.