Bob Barker: Game show host, animal activist has died | USA TODAY

In his more than 30 years as emcee of "The Price is Right," Bob Barker changed in only one appreciable way: He stopped dyeing his hair in the early 1990s, two decades into the game show's long and storied run.

Nearly everything else about Barker – his tanned and lithe looks, his avuncular ease with contestants, his witty rapport with the audience – remained the same. Even the CBS set where "Price" had been taped five times a week beginning in 1972 didn’t change much: the same mustard-avocado-and-tangerine color scheme, the same Smithsonian-worthy Showcase Showdown wheel.