Provide for the Consumer, and She Shall Reward You...
... but push her away, and it will bite you in the ass.
AllYourTV is reporting that cable companies may limit the time you can keep a recorded program on your DVR.
For the consumer, time-limiting recorded programs would provide absolutely no benefit. It would drive people to products that compete with the cable companies' DVRs (see: TiVo, ReplayTV), or worse: to (gasp!) a file-sharing network like BitTorrent.
Please don't stick your head in the sand, Big Cable Company. Find (or hire) smart people who grok technology and business in your organization, and listen to them. It'll be better for both you and us in the long run.