John Ritter shirtless in Three's Company 8-17 "Jack Takes It Off"

John Ritter in Three's Company 8-07 "Grandma Jack"

Paul Sylvan shirtless in Three's Company 7-16 "Jack Goes The Distance"

Richard Kline shirtless in Three's Company 7-10 "The Impossible Dream"

John Ritter shirtless in Three's Company 4-08 "A Camping We Will Go"

John Ritter shirtless in Three's Company 4-06 "The Life Saver"

John Ritter, Richard Kline and Don Knotts shirtless in Three's Company 4-04 "Snow Job"

Alan McRae and Daniel Trent shirtless in Three's Company 3-22 "Triangle Troubles"

John Ritter shirtless in Three's Company 2-13 "Helen's Job"

John Ritter shirtless in Three's Company 2-11 "Janet's High School Sweetheart"