Question: What is the name of this American game show creator, producer, and host, for whose production company Johnny Jacobs often worked?

Context paragraphs:
Mel Stuart: Mel Stuart (born Stuart Solomon; September 2, 1928 – August 9, 2012) was an American film director and producer, who often worked with producer David L. Wolper, whose production firm he worked for 17 years, before going freelance.

Blank Check (game show): Blank Check is an American game show that aired on NBC from January 6 to July 4, 1975.  It was promoted as "television's first ESP game".  Art James was host, with Johnny Jacobs as announcer (though Johnny Gilbert would fill in on occasion).

The Parent Game: The Parent Game is an American game show that ran in syndication from 1972–1973.  The show was hosted by Clark Race, a Los Angeles radio personality, with Johnny Jacobs as the announcer (although Charlie O'Donnell handled these duties on the first two episodes).  The answers were commented by child psychologist Dorothy Thompson, who did not appear in-studio.

Craig Plestis: Craig Plestis is the President and CEO of Smart Dog Media, a reality programming production company.  Plestis was the executive producer behind the NBC singing game show, The Winner Is hosted by Nick Lachey, in partnership with Talpa Media.  The series premiered in June 2013.  Plestis was the creator and executive producer of more than 70 episodes of the hit game show Minute to Win It, hosted by Guy Fieri, and winner of the International FRAPA Award for Best Studio Based Game Show.  He also executive produced NBC’s Who’s Still Standing?  a game show that featured contestants falling through trap doors after answering trivia questions incorrectly.

The Big Game (game show): The Big Game is a game show created by Jackson Stanley Productions, which ran on NBC in prime time from June 13 to September 19, 1958.  It was hosted by Tom Kennedy, marking his first national hosting gig.  Wendell Niles was the original announcer, later replaced by Johnny Jacobs.

Spin-Off (game show): Spin-Off is an American game show created and produced by Nick Nicholson and E. Roger Muir for CBS in 1975 that was based on the dice game Yahtzee.  The series was hosted by Jim Lange and announced by Johnny Jacobs.  The show replaced "The Joker's Wild" on CBS' daytime schedule and debuted on June 16, 1975, but was cancelled on September 5, 1975.  "Spin-Off" originated in Stages 31, 33 and 41 at CBS Television City in Hollywood, California.

Johnny Jacobs: John Byron Jacobs (June 22, 1916 – February 8, 1982), was an American television announcer, often for Chuck Barris productions—namely, "The Newlywed Game" and "The Dating Game".

Rhyme and Reason: Rhyme and Reason is an American television game show that aired on ABC from July 7, 1975 through July 9, 1976.  Bob Eubanks hosted the show, with Johnny Jacobs serving as announcer.

Chuck Barris: Charles Hirsch Barris (June 3, 1929 – March 21, 2017) was an American game show creator, producer and host.  Barris was known for hosting "The Gong Show", and creating "The Dating Game" and "The Newlywed Game".  He was also a songwriter, who wrote "Palisades Park" for Freddy Cannon.  Barris wrote an autobiography titled "Confessions of a Dangerous Mind", which was made into the film of the same name directed by George Clooney.

Give-n-Take: Give-n-Take is an American television game show which ran on CBS from September 8 to November 28, 1975.  Jim Lange hosted, with Johnny Jacobs announcing.  The series, which replaced "Spin-Off" (also hosted by Lange and announced by Jacobs), ended after 60 episodes.

Supporting paragraphs: Johnny Jacobs Chuck Barris
Answer: Chuck Barris