The big-screen TV is losing its cachet. A new study from Deloitte finds that teens and young twentysomethings spend more time watching movies and television shows on their computers, smartphones and tablets than they do on their TV screens. “The idea that TV is only watched on a TV isn’t true anymore,” said Gerald Belson, vice chairman of the firm’s U.S. media and entertainment practice. Deloitte surveyed more than 2,000 U.S. consumers about their media consumption habits and technology use as part of its annual Digital Democracy Survey (pdf). Although viewing habits have been changing as the number of screens in the typical home multiply, this marks the first time these devices have eclipsed TV for any segment of the population, Belson said. “It’s an indicator of how the market is reacting to the introduction of technologies,” Belson said.