She was also the namesake of a company that manufactures swimming pools and swimming pool accessories. She came out with a line of "Swim, Baby, Swim" videos, which helped parents teach their children how to swim. She also appeared as a commentator for synchronized swimming at the 1984 Summer Olympics. Williams met her fourth husband as a result of his calling her to coordinate her appearance. She co-wrote her autobiography, "The Million Dollar Mermaid" (New York: Simon & Schuster, 1999), with popular media critic and author Digby Diehl. In 1994 she made her first new big-screen appearance in 31 years as one of the hosts of the retrospective "That's Entertainment! III".