Question: What was the person who had a sidekick who the hosted nationally televised talent competition?
Context: Roger De Courcey (born 10 December 1944 in London, England) is a British ventriloquist, best known for performing with Nookie Bear.  He was the winner of the 1976 "New Faces" televised talent competition grand final. Česko Slovensko má talent ("Czechia Slovakia's Got Talent" or "Czecho Slovakia's Got Talent") is a Czech and Slovak televised talent show competition which started in August 2010 and originated from the "Got Talent" franchise.  The show is a Thames production (formerly Talkback Thames) distributed by FremantleMedia and is produced in association with Syco TV.  The show is broadcast on TV JOJ and Prima family.  Anyone of any age with any sort of talent can audition for the show.  Acts compete against each other to gain audience support while trying to become "the winner of "Czecho Slovakia's Got Talent"". Simon Phillip Cowell ( ) (born 7 October 1959) is an English reality television judge and producer, entrepreneur, and philanthropist.  He is most recognised as a judge on the British TV talent competition series "Pop Idol", "The X Factor", and "Britain's Got Talent", and the American TV talent competition shows "American Idol", "The X Factor," and "America's Got Talent".  Cowell is the principal founder and chief executive of the British entertainment company Syco. Mary-Jess Leaverland (artist name: Mary-Jess) is an English singer and songwriter who won "Min Xing Chang Fan Tian" (or in English: "I Want to Sing to the Stars"), a provincial Chinese televised talent competition televised to 70 million people in December 2009. Michael Paul Cathers (born May 12, 1964), known by his stage name, Geechy Guy, is a stand-up comedian who hails from the U.S. state of Michigan.  He is probably best known for his appearances on "Star Search", the nationally televised talent competition hosted by Ed McMahon.  While on the show, Guy coined the term "joke grenades" to describe jokes that trigger a delayed audience reaction.  Guy held the record for the most wins for a comedian (10) beating such comedians as Ray Romano and nine others.  He was defeated by Rondell Sheridan. Christopher James Michael Allen (born January 13, 1985) known professionally as C.J. Allen is a Canadian-born entrepreneur, creative director, magazine editor, talent scout and talent competition judge.  He is recognized as the creator, executive producer and judge for South Korea's first all-English talent competition, Top Talent Korea and Canadian vocal talent search The Shot. The Asian Excellence Awards was an annual celebration of the outstanding achievements of Asians and Asian Americans in film, television, music, and the performing arts.  The Asian Excellence Awards is the only nationally televised event celebrating significant Asian and Asian American achievements in entertainment and the arts.  The 2008 Asian Excellence Awards, hosted by Carrie Ann Inaba and Bobby Lee, were held at the UCLA Royce Hall and nationally televised on E! Entertainment on May 1, 2008.  The show was also available on Comcast On Demand throughout the month of May in honor of Asian Pacific American Heritage Month. The PBA Tournament of Champions is one of the four major PBA (Professional Bowlers Association) bowling events.  The inaugural event, held by the PBA in , featured all 25 PBA Tour title-holders to date, and was won by PBA Hall of Famer Joe Joseph, who had qualified for the tournament only four events prior.  In , the tournament featured all champions since the 1962 event, before officially becoming an annual event in 1966 (at that time featuring the most recent 48 tour champions).  From 1965 to 1993, Firestone Tire sponsored the Tournament of Champions.  From 1965 until 1994, the tournament was contested at Riviera Lanes (now AMF Riviera Lanes) in Fairlawn, Ohio near the long-time Firestone World Headquarters in Akron, Ohio.  In a notable opening match at the 1967 Tournament of Champions finals, Jack Biondolillo rolled the first-ever nationally televised 300 game.  Oddly, Biondolillo would only tally a 188 score in his next match (a victory), before being eliminated in his third match with a 172 score.  Biondolillo's feat was not matched until , when Sean Rash rolled the TOC's second televised perfect game in the second match of the stepladder finals.  The tournament has also seen a pair of televised 299 games, by Don Johnson () and Mika Koivuniemi ().  The 2011 event also featured the lowest-ever game bowled in a nationally televised PBA event as well as the largest pin differential in a PBA match, when Koivuniemi defeated Tom Daugherty in the semifinals, 299–100. Josephine Roberto (born December 25, 1977), known by her stage name Banig or Banig Roberto, is an international recording artist, songwriter, actress and music producer born in Pasay City, Philippines.  Although she began singing when she was 3, her professional career started at the age of 8 when she appeared on Ang Bagong Kampeon, a nationally televised talent show in the Philippines.  She was a 7-week champion and placed third in the grand finals.  After her success on Ang Bagong Kampeon, she appeared on many other television shows and in 1989, won the International Star Search TV competition to become the Junior Category Champion representing the Philippines.  This prompted her move to the United States where she has enjoyed a successful international career that continues today. Edward Leo Peter McMahon Jr. (March 6, 1923 – June 23, 2009) was an American comedian, actor, singer, game show host and announcer.  He is most famous for his thirty year run on NBC television as Johnny Carson's sidekick, announcer and second banana on "The Tonight Show" from 1962 through 1992 and on Carson's earlier ABC game show "Who Do You Trust? " He also hosted the original "Star Search" from 1983 to 1995.  He co-hosted "TV's Bloopers & Practical Jokes" with Dick Clark from 1982 to 1998.  He also presented sweepstakes for the direct marketing company American Family Publishers (not, as is commonly believed, its main rival Publishers Clearing House).
Answer: Johnny Carson