US broadcast network, Fox, announced Monday that it will air Twitter-enhanced re-runs of the shows, "Fringe" and "Glee," on September 3rd (9:00-10:00PM ET/PT) and September 4th (9:00-10:00PM ET/PT) respectively. The so-called "tweet-peats" will feature tweets from the shows' cast and producers running in a lower-third scroll (they can also be viewed at http://www.twitter.com/fringeonfox and http://www.twitter.com/gleeonfox). The tweets will provide commentary about the episode, answer fan questions, reveal behind-the-scenes secrets and offer insights about the coming season, Fox says. According to the broadcaster, viewers will have the chance to interact with the shows' cast and producers by replying to their tweets, and select viewer tweets will also appear on screen: Fox is encouraging viewers to use the hashtags #fringe or #glee in their tweets, so that they can be more easily found.