WHY THE INTERNET WAS INVENTED Cat videos! They've even made the museum scene, in Minneapolis' Walker Art Center's first Cat Video Festival. Winning entry runs on Animal Planet during the season finale of "My Cat From Hell" Saturday night at 8. Watch the contenders (and check series casting info for your cat!) at animalplanet.com.

FASHION WEEK There's cable coverage of New York's big event on Style channel all week, wrapping with Friday's 8 p.m. "2012 Style Awards." But there's even more activity online -- video streams, photo galleries, blog commentary -- at mystyle.com.

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THIRTEEN AT 50 As WNET/13 prepares for its 50th anniversary Sept. 16, Dick Cavett hosts a Wednesday 6 p.m. panel on the public TV powerhouse at Manhattan's Paley Center for Media. In person: Robert MacNeil, Renee Fleming, Judith Jamison, Judy Collins. Details at paleycenter.org/2012-fall-thirteen.

K-1 ONLINE Cable's Spike channel starts live streaming K-1 kickboxing action with tonight's U.S. Grand Prix Championship from Los Angeles. More at spike.com/shows/k-1.