Wikipedia
"Ludachristmas" is the ninth episode of the second season of the television series 30 Rock and was first broadcast on December 13, 2007, on the NBC network in the United States. The episode was written by Tami Sagher and directed by Don Scardino. Guest stars in this episode include Kevin Brown, Kay Cannon, Grizz Chapman, Anita Gillette, Selena Gonzalez, Buck Henry, John Lutz, John F Mooney, Maulik Pancholy, Andy Richter and Elaine Stritch.
In this episode, Liz Lemon's ( Tina Fey) family ( Anita Gillette, Buck Henry, and Andy Richter) visit her for the holidays and Jack Donaghy's ( Alec Baldwin) mother, Colleen Donaghy ( Elaine Stritch), also visits him for the holidays. The cast and writers of TGS with Tracy Jordan, a fictional sketch comedy series, prepare to attend their annual Ludachristmas party. Tracy Jordan ( Tracy Morgan) is ordered by a court to wear an alcohol monitoring device.