NEW YORK – “Saturday Night Live” was built with a cast of young no-names performing countercultural comedy. Fifty years later ...

As the show gears up to celebrate its milestone, here are 12 moments over the past five decades when the show didn't just reflect pop culture — it drove it.

5.Tia and Tamara Mowry babysat Mary-Kate and Ashley Olsen for a half-day when they were around seven or eight on the set of ...