Betty White was asked to host the show after a 500,000-strong campaign for her to do so was launched on Facebook in early 2010.
Unusual for a host, Betty White appears in every sketch, including the cold open, Weekend Update and prerecorded shorts.
Betty White was joined by several female former cast members; Molly Shannon, Ana Gasteyer, Rachel Dratch, Maya Rudolph, Tina Fey, and Amy Poehler all made guest appearances.
In Home Again, Rose: Part 2 (1992), when Rose is under the anesthesia before surgery, she tells her daughter, "Live from New York, it's Saturday night!"