 The Groove Tubes "Channel One Evening News" skit and its tagline,  Good night and have a pleasant tomorrow, was the direct  inspiration for "Weekend Update" on  _"Saturday Night Live" (1975)_ (qv). Chevy Chase (qv), the  original Weekend Update anchorman, was featured in The Groove Tube,  although Ken Shapiro played the Channel One anchorman in the  movie.