Don Herbert, also known as television's science teacher Mr.Wizard, died at his home Tuesday of bone cancer. He was 89.

Mr. Wizard's target audience was kids (baby boomers: you may already know this) and his lessons taught youngsters to use the thinking skills of scientists through workshop experiments using simple household items. His 1950s series Watch Mr. Wizard was so good it won a Peabody Award in 1954, and Herbert was one of David Letterman' first guests when the show Late Night With David Letterman debuted in 1982. Herbert's show made it to Nickelodeon too and ran from 1983 to 1991. Reruns were shown until 2000. Nickelodeon's Mr. Wizard episodes are available here.

A native of Waconia, Minnesota, Herbert graduated from LaCrosse State Teachers College in 1940; served as a U.S. Army Air Corps pilot during World War II; and worked as an actor, model, and radio writer before reaching fame on Mr. Wizard in Chicago -- and then New York -- on NBC.

He is survived by six children and stepchildren and by his second wife, Norma.

Actress Mariska Hargitay lost her father on Thursday to multiple myeloma. Mickey Hargitay, the 1955 Mr. Universe, Mr. America, Mr. Olympia, and one-time husband of late sex symbol Jayne Mansfield died at the age of 80 at Cedars-Sinai Medical Center in Los Angeles.

Born Miklos Hargitay in Hungary, Mickey emigrated to the United States after World War II. Here he entered the world of bodybuilding and then landed a role in Mae West's Las Vegas Revue. Mansfield, who saw the show in 1956, married Hargitay in 1958 -- and the two later had daughter Mariska and two other children. Mansfield and Hargitay divorced in 1964 -- and Mansfield died in a car crash in 1967.

Family members shared in a statement to the media, "words cannot express how saddened we are by the loss of Mickey. At the same time, we are so grateful for who he was and is to all of us, and for the love he gave us in our lives. He will continue to be our source of inspiration and strength."

Hargitay, also know for a few Hercules-style movies, is survived by his wife of 38 years, Ellen, a daughter, a stepdaughter, two sons, a brother, a sister, 10 grandchildren and three great-grandchildren.