Bonnie Bartlett and William Daniels have been married for more than 74 years, making them one of the longest-married couples in entertainment history. The two met as young actors at Northwestern University and built parallel, decades-long careers in television and film, most memorably starring together as husband and wife on St. Elsewhere, a collaboration that led to a historic moment in 1986 when they both won Emmy Awards on the same night. Over the years, William became a television icon as Dr. Mark Craig on St. Elsewhere, the voice of KITT on Knight Rider, and beloved teacher Mr. Feeny on Boy Meets World, while Bonnie carved out a seven-decade career with standout roles on Little House on the Prairie and St. Elsewhere. Their marriage has not been without challenges and the two sat down with Amy and T.J. to discuss how their relationship has stood the test of time.