Images: TiVo's ad hook

TiVo's new commercial feature, TiVo Product Watch, offers subscribers free on-demand content from advertisers.

TiVo subscribers can choose topics of interest and watch ad content varying from one minute to 60 minutes.

The content style varies depending on the advertiser. Commercials, infomercials and how-to segments, as well as entertaining shorts with product placements are all offered.

TiVo says that more than 70 advertisers have joined the program, including Kraft Foods, which will be offering cooking demonstrations featuring its products.