Apple has a new trick up its sleeve as it tries to launch a long-awaited television service: technology that allows viewers to skip commercials and that pays media companies for the skipped views. For more than a year, Apple has been seeking rights from cable companies and television networks for a service that would allow users to watch live and on-demand television over an Apple set-top box or TV. Talks have been slow and proceeding in fits and starts, but things seem to be heating up. In recent discussions, Apple told media executives it wants to offer a “premium” version of the service that would allow users to skip ads and would compensate television networks for the lost revenue, according to people briefed on the conversations. Consumers, of course, are already accustomed to fast-forwarding through commercials on their DVRs, and how Apple’s technology differs is unclear.