Mammy's Mummy

"Mammy's Mummy" is a Christmas episode of the television sitcom .

Synopsis
Agnes has a new Christmas tree courtesy of Buster, which turns out to be an automatic brusher which he stole from the local car wash. Meanwhile, Rory has had plastic surgery to improve his looks and spends most of this episode with his head bandaged, Dermot and Buster run a Santa's Grotto, with Grandad as Father Christmas and Bono as an elf - at least, until Betty finds he's been missing school, Grandad thinks the house is haunted by something after watching a horror movie - and Cathy has a new boyfriend via the internet.