PA: Viewer discretion is advised.

LOIS TIPS THE SCALE ON �FAMILY GUY� SUNDAY, DECEMBER 17, ON FOX

After a pregnancy scare, Peter reluctantly agrees to get a vasectomy. But after the operation, Peter�s sex drive becomes nonexistent. When Lois packs on some extra pounds, Peter�s interest is renewed and things heat back up in the bedroom until her unhealthy eating habits get the best of her. Meanwhile, Stewie�s half-brother and archrival Beltram confronts him and they declare an all-out war for control over the playground in the �Sibling Rivalry� episode of FAMILY GUY Sunday, Dec. 17 (9:30-10:00 PM ET/PT) on FOX. (FG-424) (TV-14 D, L, S, V)

Voice Cast: Seth MacFarlane as Peter Griffin, Stewie Griffin, Brian Griffin, Quagmire; Alex Borstein as Lois Griffin; Seth Green as Chris Griffin; Mila Kunis as Meg Griffin; Mike Henry as Cleveland and Cleveland Jr.

Guest Voice Cast: Danny Smith as A; Wallace Shawn as Bertram, Ralph Garman as Caveman #1; Patrick Warburton as Joe; Phil Lamarr as Man; John Viener as Morgan Freeman and Sylvester Stallone; Chris Sheridan as Prisoner #2 and Waiter; Nicole Sullivan as Receptionist; Tara Strong as Tatum and Zack; Alec Sulkin as Tony Danza and Wally Wingert as U.

[EDITOR�S NOTE 1: Due to the preceding NFL doubleheader, NANNY 911 airs on the West Coast only.]

[EDITOR�S NOTE 2: FAMILY GUY at 9:30 PM replaces the previously announced WAR-210.]