Mayim Bialik, who played the title role on Blossom, was already chosen for the show as the casting directors were looking for someone to play her father. Bialik had the opportunity to meet several actors during their auditions, and she liked Ted from the very beginning. She told series creator Don Reo that she really wanted him to play the role, and of course, he ended up accepting. Ted was in his late 30's at the time, and Bialik has admitted that even though he was almost too young to be playing the father of two teenagers and a young adult, he was "perfect" for it.
When approached to play the father on the family sitcom Blossom, Ted was initially not interested, because he didn't want to act anymore, and it was his goal to start directing. However, he finally agreed to do it, and it was his final acting role. Also, because directing was his passion, he was allowed to direct several episodes of the show.
Ted was married for 14 years to actress Janet Margolin, who was nine years older than him. She died of ovarian cancer in December 1993, when Ted's television show Blossom was in its fourth season. The couple's children, Julian and Matilda Wass, were 3 and 11 years old at the time. Three years later, in 1996, Ted was re-married to producer Nina Wass, and they had a daughter named Stella in 2004.