The sketch show’s 50-year history has spawned countless pop culture moments. Sketches like “Wayne’s World” led to entire movie franchises. More recently, Marcello Hernandez’s character Domingo has made meta appearances in the real world.

L ike Sally O’Malley, Molly Shannon’s spry, bouffant-sporting quinquagenarian, “Saturday Night Live” is 50 years old, limber for its age and a little too proud of itself. It isn’t hard to understand why.

Legions of comedic talent have paraded through NBC’s Studio 8H, whether as cast members, writers or hosts of “Saturday Night Live.”