More than 30 years ago, TV viewers in Columbus, Ohio, got first crack at the future of television: QUBE, a new interactive service from Warner Cable. With the cable industry still in its infancy, viewers with a QUBE set-top box had access to 30 channels plus a number of interactive features activated by a special remote control (pictured above). Subscribers could buy pay-per-view movies, participate in polls, bid on auctions, and even play rudimentary video games. Why didn't QUBE change TV forever? Cost, which never came down even as it rolled out to other cities.