Before Narz was in the game show business, he was a radio announcer for three stations in Los Angeles, California; KXO-AM, KWIK-FM, KIEV-AM (now KRLA-AM), and KLAC-AM. He also announced on two children's shows; The Adventures of Superman and Space Patrol. Narz also did voiceover work for The Bob Crosby Show. He also sang on that show, where he released his only album, Sing the Folk Hits With Jack Narz. Narz retired in 1988 from television.
Narz was first married to Mary Lou Roemheld, where they had three sons; John Lawrence III, David, and Mike. They also had a daughter named Karen. However, Roemheld and Narz divorced. Shortly after, he married Dolores Vaichsner.
Narz died on October 15, 2008, from two strokes, at the age of 85, just a month short of his 86th birthday.
- Dotto (1958)
- Top Dollar (1958-1959)
- Video Village (1960)
- Seven Keys (1960-1965)
- I'll Bet (1964, 1965)
- The Movie Game (1966 pilot)
- The Who, What, or Where Game (1966 pilot)
- Beat the Clock (1969-1972)
- Concentration (1973-1978)
- Now You See It (1974-1975)
- You’ve Got To Be Kidding (1987-1988)
- Password Plus (1 segment in 1982)