I know the TV show you're talking about but also forget the name of same.  It was pretty funny though.

The whole TiVo auto-recording of suggestions feature is one that I turned off as soon as I got the boxes setup in my house (DirecTV PVRs with TiVo).  If I hadn't done that then I'd have been getting literally tons of crap recorded that I have no interest in.

As an example, I came home to find that TiVo was assuming that I wanted lots of Nickelodeon cartoons (I like cartoons as much as the next person, but my tastes run towards Tom & Jerry, The Flintstones, The Jetsons, Looney Tunes, Bugs & Daffy, etc.) -- the reason: my children were watching a lot of Nick programs (Spongebob type) as soon as they got home from school.  (For the record, I have no problem with my children watching those programs, just not interested in same myself).  TiVo was building up "preference" information based on my whole families TV watching and it had no idea that as the main user of the box I wouldn't want my system filled up with kiddie programs.

Actually, in my household I could run the gamut of programming on a TiVo's suggestions.  I'd wind up with Taxicab confessions (HBO's trashy show), news talk, the Simpsons, Heroes, Mission Impossible (TV shows), and a lot of other stuff.  I think the only thing it would really avoid would be Lifetime/Oxygen/Oprah type shows, and probably "gay interest" programming as I tilt away from such programs myself.

Anyway, TiVo's suggestions feature isn't necessarily bad, but you definitely have to give it a longer period to learn your tastes.  Running it for just a day or two while it learns your habits will wind up with more false positives than you'd normally want.  Using the box for a longer period (say 6 months or a year) will have the box learning more about your tastes and getting better at making suggestions of programs you might like.