Question: Who co-starred in an episode of The ABC Comedy Hour with the man who played Duke Slater in "Gomer Pyle, U.S.M.C."? 

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The Gomers are a Madison, Wisconsin based comedy rock/experimental music/progressive rock band.  Former Madison Mayors Dave Cieslewicz and Sue Baumann both proclaimed February 1 as "Gomer Day" in Madison.  Their name was taken from Gomer Pyle. <P3-S0> "Gomer Pyle, U.S.M.C." is an American situation comedy created by Aaron Ruben that originally aired on CBS from September 25, 1964, to May 2, 1969. <P3-S1>  The series was a spinoff of "The Andy Griffith Show", and the pilot episode was introduced as the final fourth season episode which aired on May 18, 1964. <P3-S2>  The show ran for five seasons, with a total of 150 half-hour episodes. <P3-S3>  Despite the series' positive reception (the show remained in the Top 10 Nielsen ratings for all five seasons), Nabors quit because he desired to move to something else, 'reach for another rung on the ladder, either up or down'. <P3-S4>  In 2006, CBS began releasing the show on DVD; the last season was released in November 2008. Sheriff Andrew "Andy" Jackson Taylor and in earlier episodes as Cousin Andy by Barney Fife is the major character on "The Andy Griffith Show", an American sitcom which aired on CBS, (1960–1968).  He also appears in the "Gomer Pyle, U.S.M.C." episode "Opie Joins the Marines", made a cameo appearance in the USMC episode "Gomer Goes Home," five episodes of "Mayberry R.F.D." (1968–1971) and the reunion telemovie "Return to Mayberry" (1986).  The character made his initial appearance in an episode of "The Danny Thomas Show" entitled "Danny Meets Andy Griffith."  In the CBS special "The Andy Griffith - Don Knotts - Jim Nabors Show" (1965), Andy and Barney are featured in a musical sketch about their friendship and recreate some classic moments between the characters.  Andy Griffith, as Sheriff Taylor, also has a brief comedy cameo in "Rowan and Martin at the Movies" (1969), a PSA short subject promoting the purchase of U.S. Savings Bonds.  Andy Taylor appeared in all 249 episodes of "The Andy Griffith Show" and was played by comedian and actor Andy Griffith. Claude Wilson Osteen (born August 9, 1939), nicknamed "Gomer" because of his resemblance to Gomer Pyle, is a former Major League Baseball left-handed pitcher.  He pitched for six different teams: the Cincinnati Redlegs/Reds (1957–61), Washington Senators (1961–64), Los Angeles Dodgers (1965–73), Houston Astros (1974), St. Louis Cardinals (1974), and Chicago White Sox (1975). Gomer Pyle, U.S.M.C. is an American television situation comedy that was originally broadcast from 1964 to 1969 on the CBS network.  It focused on Gomer Pyle, a naïve but good-hearted private in the United States Marine Corps who served in a non-combat role while stationed stateside.  The plots of the episodes often grew out of the contentious relationship between Pyle and his stern NCO, Sergeant Carter. <P1-S0> Buck Young (April 12, 1920 – February 9, 2000) was an American actor who played the role as Sergeant Whipple on the "Gomer Pyle, U.S.M.C." TV series, and Deputy Joe Watson on "The Andy Griffith Show". James Thurston Nabors (born June 12, 1930) is a retired American actor, singer, and comedian.  Born and raised in Sylacauga, Alabama, Nabors moved to southern California because of his asthma.  While working at a Santa Monica nightclub, The Horn, he was discovered by Andy Griffith and later joined "The Andy Griffith Show," playing Gomer Pyle.  Nabors, Betty Lynn, Elinor Donahue, and Ron Howard are the last surviving regular cast members from that series.  The character proved popular, and Nabors was given his own spin-off show, "Gomer Pyle, U.S.M.C.." The ABC Comedy Hour was an American television variety series that aired on ABC in 1972.  Seven of the 13 episodes featured a guest host and a team of comedy impressionists known as The Kopykats (Rich Little, Frank Gorshin, Joe Baker, Marilyn Michaels, George Kirby, and Fred Travalena, with single appearances by Charlie Callas, Will Jordan, and Peter Goodwright).  Guest hosts included Steve Lawrence, Orson Welles, Ed Sullivan, Raymond Burr, Robert Young, Debbie Reynolds and Tony Curtis.  The remaining six episodes were variety specials and included two Friars Club roasts and a revival of the musical "Hellzapoppin'" starring Jack Cassidy and Ronnie Schell. Ronald Ralph "Ronnie" Schell (born December 23, 1931) is an American actor, stand-up comedian, and voice actor.  He appeared on May 28, 1959, episode of the TV quiz program "You Bet Your Life", hosted by Groucho Marx.  Schell demonstrated a comic barrage of beatnik jive talk.  As a stand-up comedian, he first developed his act at the world-famous hungry-i nightclub in San Francisco, California.  Schell is probably best known in his 1960s television role as Duke Slater in "Gomer Pyle, U.S.M.C." Goober Pyle is a fictional character in the American TV sitcom "The Andy Griffith Show" and its later sequel series "Mayberry RFD".  He was played by George Lindsey.  Lindsey first read for the part of Gomer Pyle, Goober's cousin, which went to actor-singer Jim Nabors.  The two actors had similar backgrounds; Lindsey was from Jasper, Alabama, while Nabors was from Sylacauga, Alabama.

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 The remaining six episodes were variety specials and included two Friars Club roasts and a revival of the musical "Hellzapoppin'" starring Jack Cassidy and Ronnie Schell. Ronald Ralph "Ronnie" Schell (born December 23, 1931) is an American actor, stand-up comedian, and voice actor.  Schell is probably best known in his 1960s television role as Duke Slater in "Gomer Pyle, U.S.M.C."