Motivated by recent Janeane Garofalo and/or Kathy Griffin appearances on The Sopranos, 3rd Rock From The Sun, The Second Annual TV Guide Awards, Law & Order, and Strangers With Candy, the FCC passed a regulation Monday requiring walk-ons by 'at least one of these cutting-edge underground comediennes on all TV shows.' Said FCC chair William E. Kennard: 'This measure is good for the television industry, ensuring that all programs enjoy a dose of the Garofalo/Griffin indie aura.' Griffin is already slated for a guest appearance on next Monday's Nightline, on which she will play a nymphomaniacal tobacco lobbyist obsessed with Ted Koppel. 