And an excerpt:

TV SEO may be on the horizon sooner than expected. Samsung electronics has introduced a "Set Top Box" hardware which allows a TV viewer to search for related content on the web. (Seems like they would be better off selling their chip to Motorola, Tivo, et al to incorporate into current cable and satellite and DVR boxes.) This technology is based on television standard "Closed Captioning" which provides text transcripts on screen for the hard-of-hearing. There is also metadata available for programs listing program titles, characters, news anchors, talk show guests and movie actors, and/or those appearing on-screen during broadcast.
more ...