The E channel has been showing classic episodes of SNL the past week or so. Last night they had one where Kate Jackson hosted. I am guessing it was around 1977 or so. The opening skit had Jane Curtin playing Cheryl Ladd's character and Gilda doing Jaclyn Smith. Kate played Sabrina and John Belushi was Bosley.
She discussed being an NBC page in here early days and said she gave tours of the studio SNL is filmed in at one time.