On March 15, 2011, Donald Trump changed television forever. The <i>Comedy Central </i><i>Roast </i>of Trump was the first major live broadcast to place a hashtag in the corner of the screen to encourage real-time reactions on Twitter, generating more than 25,000 tweets and making the broadcast the most-watched <i>Roast</i> in Comedy Central history. The #trumproast initiative personified the media and tech industries'' utopian vision for a multiscreen and communal live TV experience. <p/> In <i>Social TV: Multiscreen Content and Ephemeral Culture</i>, author Cory Barker reveals how the US television industry promised--but failed to deliver--a social media revolution in the 2010s to combat the imminent threat of on-demand streaming video. Barker examines the rise and fall of Social TV across press coverage, corporate documents, and an array of digital ephemera. He demonstrates that, despite the talk of disruption, the movement merely aimed to exploit social media to reinforce the value