CHRISTMAS CHEER IS A LITTLE MIXED AS EACH HOUSEHOLD GETS READY FOR THE HOLIDAYS, ON ABC'S "MODERN FAMILY"

Guest starring Fred Willard ("Best in Show," "Waiting for Guffman") as Phil's dad.

"Undeck the Halls" � Christmas is in full swing at the Dunphy house until the kids get in some trouble and Phil and Claire threaten to take away Christmas until one of them fesses up. Meanwhile, Jay struggles with wanting to stick to his holiday traditions while Gloria and Manny want to incorporate some of their Colombian practices, and Mitchell and Cameron take Lily to the mall for her first picture with Santa -- but end up with a disgruntled mall Santa on their hands -- on "Modern Family," WEDNESDAY, DECEMBER 9 (9:00-9:30 p.m., ET), on the ABC Television Network.

"Modern Family" stars Ed O'Neill as Jay Pritchett, Julie Bowen as Claire Dunphy, Ty Burrell as Phil Dunphy, Sof�a Vergara as Gloria Delgado-Pritchett, Jesse Tyler Ferguson as Mitchell Pritchett, Eric Stonestreet as Cameron, Sarah Hyland as Haley Dunphy, Nolan Gould as Luke Dunphy, Ariel Winter as Alex Dunphy and Rico Rodriguez as Manny Delgado.

Guest cast include Fred Willard as Phil's dad, Brian T. Finney as Scott and Jeremy Scott Johnson as Andrew.

"Undeck the Halls" was written by Dan O'Shannon and directed by Randall Einhorn.

"Modern Family" is broadcast in 720 Progressive (720P), ABC's Selected HD Format, with 5.1 channel surround sound and Spanish subtitles via secondary closed captioning. A TV parental guideline will be assigned closer to airdate.

For more information on "Modern Family," visit ABC.com.