Related link: http://news.yahoo.com/s/nm/20051128/tc_nm/tivo_dc_3

From the 11/28 WSJ:

“TiVo users will be able to set up a profile of products on their television screens by clicking on categories such as automotive or travel or typing in keywords such as ‘BMW’ or ‘cruises.’ … TiVo will then download relevant commercials to TiVo recorders over the Internet or, for those users who don’t have broadband, send the video via traditional broadcast signals.”

I could see myself using this to get detailed, media-rich product descriptions.