He's one half of the Bob & Tom Show and he announced his retirement live from the stage of the National Radio Hall of Fame Induction ceremony last night in Chicago. Bob Kevoian of the nationally syndicated Bob & Tom Show says he will retire from radio by the end of the year. Kevoian said at the event, "I always thought you had to die or be retired for five years to be considered for any hall of fame. Thank God I'm not dead, but I am going to retire at the end of this year and walk away from the mic."