I think this is just another example of how broken our patent system is. Things like TiVo Suggestions, the general concept of recommending something to someone based on past behavior, is an obvious idea that is widely used across the net. Heck, it was used by retailers and catalog companies to make personal suggestions long before the net was around. Obvious concepts like this really shouldn’t be patented.
Lycos was the first search engine I used regularly, back when their mascot was still a Wolf Spider and not the dog. (Lycos is short for Lycosidae.) Eventually I concerted to Google when they came on the scene. Lycos has just slipped into obscurity, now they’re suing people for using obvious concepts they managed to patent.