In a dress rehearsal sketch from 'Saturday Night Live,' Martin Short stars sitcom set in a high-school that together for a 30-year reunion show.

The best and worst moments from last night's new episode of "SNL," with Martin Short, Paul McCartney, Tom Hanks, Samuel L. Jackson, Tina Fey, and more.

Martin Short, a former 'SNL' cast member, is set to return for the first time in 16 years.