TV powerhouses Warner Bros. Television and TV Guide Magazinehave renewed their super alliance to deliver fans the ultimate must-have Comic-Con item for the third year in a row: a Warner Bros.–themed Comic-Con special edition of the magazine, featuring programming from the Studio and four sets of collectible “flip” covers starring the casts of The Big Bang Theory, Fringe, Supernatural and The Vampire Diaries on both front and back. Click here for more information.