see more

UNITED STATES - SEPTEMBER 12: THREE'S COMPANY - "Double Date" - Season Three - 9/12/1978, Jack (John Ritter) feigns an illness for Janet (Joyce DeWitt) and Chrissy (Suzanne Somers)., (Photo by Walt Disney Television via Getty Images Photo Archives/Walt Disney Television via Getty Images)

UNITED STATES - SEPTEMBER 12:  THREE'S COMPANY - "Double Date" - Season Three - 9/12/1978, Jack (John Ritter) feigns an illness for Janet (Joyce DeWitt) and Chrissy (Suzanne Somers).,  (Photo by Walt Disney Television via Getty Images Photo Archives/Walt Disney Television via Getty Images)