BOOB TUBE -- The Riff is as avid a lookout for tipping points as the next gal (or guy, for that matter), but we don't necessarily subscribe to the theory that Janet Jackson's breast will necessarily be the thing that finally gives the American public reason to run out and get a TiVo. But it sure is giving digital video recorders a lot of attention.

OF TOPS, SPEED AND SOME SUPER MOMENTS - What is it about live mass television audiences that causes white boys to do nasty things to black women? Overactive libidos aside, the Riff thinks it's about another kind of desire - the public relations kind. If you are to believe the statements of Viacom networks CBS and MTV that Justin Timberlake's partial disrobing of Janet Jackson during last night's Super Bowl halftime show was "unrehearsed, unplanned, completely unintentional" was written by spin controllers, you clearly did not observe their on-stage reactions in super-slow motion - over and over and over again …