Since at least Spring Comcast has been engaged in a very small trial of a network DVR in Boston
, where fewer than a dozen people are testing a proof of concept for Comcast's implementation of the technology. The service should be very similar to a network DVR platform deployed by Cablevision
, which was delayed repeatedly due to lawsuits from an entertainment industry worried about loss of control and ad revenue. Fierce Cable
has noticed that Comcast this week filed for a patent for the as-yet-unannounced technology. "These local hard-drive-based DVRs are well appreciated by users, but there is an ever-present demand for greater flexibility and functionality in how content is offered to, stored and managed for, users," says Comcast in the filing.