In one of her earliest TV roles, Kathy Bates hopped aboard the sitcom as passenger Sally Allison, a newlywed who had a hard time getting it on with her husband (played by John Rubinstein).

"Every time we wanted to consummate our marriage, something kept getting in the way. He had a rash, and when he tried to carry me into our bedroom he pulled his back out. I went ashore to Mexico and got on the wrong boat."

http://ew.com/tv/kathy-bates-career-role-call/the-love-boat-1978