His comedy skits portraying a sun-tanned, raggedy cut-off jean, flip-flop wearing beach bum in Acapulco was a take off of Bob Denver's role on "Gilligan's Island."
After playing Dobie for four years (with fellow former Loyola student Bob Denver as his sidekick, Maynard G. Krebs), Hickman found himself stereotyped as a "youngster" when he was too old for such roles.
And among the family programs that have aired are Nanna's Cottage, You Bet Your Life with Groucho Marx, Dusty's Trail with Bob Denver (Gilligan's Island) and the Adam and Eve Factor Christian marriage series.
In addition to Petticoat Junction, she was a regular cast member on Dusty's Trail, a mid-1970s comedy television series starring Bob Denver.
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Along the way, Frankie faces a challenge to his title from the younger surfers, and nearly ruins his marriage by dallying with Connie Stevens — one of several pop-culture icons appearing in the film, including Fishbone, Don Adams, Bob Denver, Alan Hale, Jr., Edd Byrnes, Jerry Mathers, Tony Dow, Barbara Billingsley, Dick Dale, Stevie Ray Vaughan, O.J. Simpson, and Pee-wee Herman.