TV co-stars not only have to embrace their on-screen romance, but quite often, they succumb to each other as well. Just recently, rumors that "The Americans" co-stars Keri Russell and Matthew Rhys are dating have reignited the longstanding rumors of TV co-stars dating in real life. From Nina Dobrev and Ian Somerhalder of "The Vampire Diaries," to Anna Pquin and Stephen Moyer of "True Blood," just who are some TV co-stars who have dated, or are dating, in real life? Check out the photo gallery above to find out!