Thursday's Highlights: 'The X-Factor' on Fox

The Large Bang Theory:  Penny and Bernadette (Kaley Cuoco and Melissa Rauch) look for wedding gowns without Amy Farrah Fowler (Mayim Bialik) within this new episode (8 p.m. CBS). Grey's Anatomy:  George O'Malley's mother (Debra Monk ...