Halloween Is Grinch Night

Halloween is Grinch Night (titled It's Grinch Night for the 1992 videocassette release and Grinch Night for the sing-a-long videocassette release) is a 1977 children's animated Halloween television special. It is a prequel to the 1966 television special "How the Grinch Stole Christmas!" It premiered on ABC on October 28, 1977.
The special won the 1978 Primetime Emmy Award for Outstanding Children's Program.