December 25, 1966-Password (Lee Remick-Peter Lawford) 

Password's CBS nighttime run had ended in September 1965. On December 25, 1966 a brief nighttime revival began with this episode featuring Lee Remick and Peter Lawford and all-celebrity guests (this "friends" format had also been done on daytime Password in September 1966 with Lucille Ball and Gary Morton). Extra celeb guests were Phyllis Newman, Stephen Sondheim, Pierre Salinger, Otto Preminger, Audrey Meadows and Lee Remick's mother Pat Packard.
The nighttime revival was cancelled in May 1967. Daytime Password ended in September 1967, but syndicated reruns of color daytime shows and the 1967 color night shows kept interest alive and led to a revival on ABC in 1971 that ran until 1975. The show was revived again in 1979 on NBC with a modified format and a new title "Password Plus".