Acting

1999

1 episode as Chet Elderson (voice)

1994

1 episode as Louie Pike

1987

1 episode as Buddy Tucker

1985

1 episode as Himself - Narrator (voice)

1984		Finder of Lost Loves 1 episode as Walter Lewis
1984		Matt Houston 22 episodes as Roy Houston
1984		Disney Family Album 20 episodes as Narrator
1984		The Yellow Rose 2 episodes as Toat Gilmore

1983

1 episode

1978

2 episodes as Charles Sprague

1977		The Mike Douglas Show 1 episode as Self
1977		Tony Awards 1 episode as Self - Host 1 episode as Self - Host/Presenter/Performer

1976

1 episode as Self

1975		Cannon 1 episode as Barnaby Jones
1975		Tony Awards 1 episode as Self - Presenter
1975		Tony Orlando and Dawn 1 episode as Self
1975		The Carol Burnett Show 1 episode as Self

1973

178 episodes as Barnaby Jones

1972		Alias Smith and Jones 2 episodes
1972		Night Gallery 1 episode
1972		Bonanza 1 episode as Cactus Murphy

1971		Gunsmoke 1 episode as Drago
1971		Hawaii Five-O 1 episode as Professor Ambrose Pierce

1967

3 episodes

1964		Vacation Playhouse 1 episode
1964		The Danny Kaye Show 3 episodes as Self

1962		The Beverly Hillbillies 274 episodes as Jed "JD" Clampett
1962		Checkmate 1 episode as Pete O'Mara
1962		Rawhide 1 episode as George Stimson

1961		Adventures in Paradise 1 episode as Ben Curtis
1961		Have Gun, Will Travel 1 episode as Bram Holden 1 episode as Marshal Elmo Crane
1961		The Andy Griffith Show 1 episode as David Browne
1961		Bus Stop 2 episodes
1961		Gunsmoke 1 episode as Quimby
1961		The Barbara Stanwyck Show 1 episode as Dr. Mark Carroll
1961		Gunslinger 1 episode
1961		The Twilight Zone 1 episode as Jimbo Cobb
1961		77 Sunset Strip 1 episode as Baxter Kellogg
1961		Maverick 1 episode as Nero Lyme

1960		Gunsmoke 1 episode as Hannibal
1960		Maverick 1 episode
1960		Riverboat 1 episode as Niles Cox
1960		Bronco 1 episode
1960		General Electric Theater 1 episode as Pa Jericho
1960		Johnny Ringo 1 episode as Sample
1960		Lock-Up 1 episode
1960		Rawhide 1 episode as Will Kinch
1960		Black Saddle 1 episode as Gurney Rhodes

1959		Bonanza 1 episode as Sheriff Jesse Sanders
1959		Westinghouse Desilu Playhouse 1 episode
1959		Maverick 1 episode as Sheriff Scratch Madden

1958		The Steve Allen Show 1 episode as Self - Northwest Passage
1958		Northwest Passage 26 episodes as Sergeant Hunk Marriner

1957

1 episode as Gaffney 1 episode as Ben

1956		Studio 57 1 episode
—		Corky and White Shadow 17 episodes as Sheriff Matthew Brady

1955

3 episodes as George Russel 1 episode

1954		Davy Crockett 5 episodes as George Russel
1954		Omnibus 1 episode

1952		Schlitz Playhouse of Stars 1 episode as Rainspout Jones
1952		Chevron Theatre 2 episodes

1949

1 episode as Self