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what was Bob Eubanks' involvement with the newlywed game
Bob Eubanks was best known for hosting the game show The Newlywed Game
how long was Bob Eubanks a host for the game show The Newlywed Game
Bob Eubanks hosted the game show The Newlywed Game on and off since 1966.
what did Bob Eubanks do after hosting the game show The Newlywed Game
After Newlywed Game, Bob Eubanks hosted a number of other game shows in his career, including Rhyme and Reason, Card Sharks, Dream House, The Diamond Head Game, and Trivia Trap
what was Bob Eubanks' involvement with country music
While not taping, Bob Eubanks also pursued a career in the country music business, where he served as manager of such artists as Dolly Parton, Barbara Mandrell and Marty Robbins.

Question: how long did he do that?
Self-contained rewrite: how long did Bob Eubanks serve as manager of such artists as Dolly Parton, Barbara Mandrell and Marty Robbins?