Twitter releases report on this fall’s most-tweeted-about television shows

21 million tweets have been sent about new fall television premieres, up 34 percent from last year. Twitter released on Thursday a report on the most-tweeted-about television shows, topping the list with Grey’s Anatomy with 2.2 million tweets. Others on the list include Supernatural and The Walking Dead (which had an average of 440,000 tweets per episode). Popular new shows of this fall include Scream Queens and Heroes Reborn.