Question: What was the person who had a sidekick who the hosted nationally televised talent competition?

full_context: Document 1: Michael Sorrentino: Michael Paul Sorrentino (born July 4, 1982), also known as The Situation, is an American television personality. He appeared on the MTV reality show "Jersey Shore" in all six seasons from December 2009 through its final episode in December 2012.
Document 2: Michael Winslow: Michael Leslie Winslow (born September 6, 1958) is an American actor, beatboxer and comedian billed as the "Man of 10,000 Sound Effects" for his ability to make realistic sounds using only his voice. He is best known for his roles in all seven "Police Academy" films as Larvelle Jones. He has also appeared in "Spaceballs", "Cheech and Chong's Next Movie", and commercials for Cadbury and Geico; also appeared on "The Love Boat".
Document 3: Jay Leno: James Douglas Muir "Jay" Leno ( ; born April 28, 1950) is an American comedian, actor, philanthropist and television host. After doing standup comedy for years, he became the host of NBC's "The Tonight Show with Jay Leno" from 1992 to 2009. Beginning in September 2009, Leno started a primetime talk show, titled "The Jay Leno Show", which aired weeknights at 10:00 p.m. ET, also on NBC.
Document 4: Edd Hall: Edd Hall (born December 7, 1958) is an American television personality and announcer. He was Jay Leno's announcer on "The Tonight Show" from 1992 to 2004, and replaced "Tonight Show" announcer Ed McMahon after Johnny Carson's retirement. Hall introduced himself by saying "...And me, I'm Edd Hall." He left the show in March 2004.
Document 5: Bob Barker: Robert William Barker (born December 12, 1923) is an American former television game show host. He is known for hosting CBS's "The Price Is Right" from 1972 to 2007, making it the longest-running daytime game show in North American television history, and for hosting "Truth or Consequences" from 1956 to 1974.
Document 6: Eddie McGuire: Edward Joseph McGuire AM (born 29 October 1964) is an Australian radio and television presenter, commentator, journalist, media businessman and sporting president known for his long association with Australian rules football (AFL) and Channel Nine, with company McGuire Media
Document 7: Guy Marks: Guy Marks (31 October 1923 – 28 November 1987) was an American actor, comedian, singer and impressionist. A familiar face on TV sitcoms and variety shows of the 1960s and 1970s, he appeared regularly on The Ed Sullivan Show, The Merv Griffin Show, The Dean Martin Show, The Mike Douglas Show and The Joey Bishop Show. He had a natural gift for mimicry, and his impressions of celebrities such as Humphrey Bogart, Gary Cooper, Boris Karloff and many others were considered among the best. However, he also could imitate a housefly on a slippery oil cloth, neon signs, alligators, driftwood furniture, rubber bands, frozen chickens, frogs, praying mantis and—his favorite—an ostrich, all of which found their way into his act or in characters he played on TV.
Document 8: Ed McMahon: 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).
Document 9: Johnny Carson: John William Carson (October 23, 1925 – January 23, 2005) was an American talk show host and comedian, best known for his 30 years as host of "The Tonight Show Starring Johnny Carson" (1962–1992). Carson received six Emmy Awards, the Television Academy's 1980 Governor's Award, and a 1985 Peabody Award. He was inducted into the Television Academy Hall of Fame in 1987. Carson was awarded the Presidential Medal of Freedom in 1992 and received a Kennedy Center Honor in 1993.
Document 10: Michael McDonald (comedian): Michael James McDonald (born December 31, 1964) is an American actor, director, writer, and comedian. He is best known for starring in the sketch comedy show "MADtv". McDonald joined the show during the fourth season (1998) and remained in the cast until the end of the thirteenth and penultimate season, having become the longest-tenured cast member. While on the show, he developed many memorable characters. He was a contributing writer and director on "MADtv".
Document 11: Geechy Guy: 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.
Document 12: Anthony Griffith (actor): Anthony Griffith is an American comedian, actor, and philanthropist. He was born to a religious family in Chicago, Illinois, where he lived until he went to college in the 1980s. While in college he took up stand up comedy, where he performed wherever he could get a spot, including comedy clubs, colleges, restaurants, hotels, strip clubs, etc. “I performed anywhere and everywhere, in the hopes of learning and mastering the craft.” In the nineties he appeared on programs such as Ed McMahon’s, “Star Search”, “The Tonight Show Starring Johnny Carson”, “HBO” and “Showtime”. Since then he has had over twenty-five national comedy television appearances, including “The Tonight Show with Jay Leno”, “HBO”, “Comedy Central” as well as others. This decade has continued with performances on “The Tonight Show” with Jay Leno, Comedy Central’s “Premium Blend” and “Curb Your Enthusiasm”.
Document 13: Michael Che: Michael Che (born Michael Che Campbell; May 19, 1983) is an American stand-up comedian and writer best known for his work on "Saturday Night Live", where he serves as co-anchor on "Weekend Update".
Document 14: Ed Sullivan: Edward Vincent Sullivan (September 28, 1901 – October 13, 1974) was an American television personality, sports and entertainment reporter, and longtime syndicated columnist for the "New York Daily News" and the Chicago Tribune New York News Syndicate. He is principally remembered as the creator and host of the television variety program "The Toast of the Town", later popularly—and, eventually, officially—renamed "The Ed Sullivan Show". Broadcast for 23 years from 1948 to 1971, it set a record as the longest-running variety show in US broadcast history. "It was, by almost any measure, the last great TV show," proclaimed television critic David Hinckley. "It's one of our fondest, dearest pop culture memories."
Document 15: Mike MacDonald (comedian): Mike MacDonald (born June 21, 1954) is a Canadian stand-up comedian and actor. He has written and/or starred in many movies, including "Mr. Nice Guy". In addition to his successful and well received live performances all over North America, MacDonald has appeared in such TV shows as the "Late Show with David Letterman" and "The Arsenio Hall Show".<ref name=" http://www.corporateentertainers.ca/mikemacdonald.htm "> </ref>
ground_truth: Johnny Carson