He appeared in more than 100 movies and TV projects, but was best known for his seven-year run on the popular 1970s sitcom.He appeared in more than 100 movies and TV projects, but was best known for his seven-year run on the popular 1970s sitcom.Read MoreActors and Actresses, Television, Comedy and Humor, Deaths (Obituaries), Multiple Sclerosis, McKean, Michael, Lander, David L., Laverne & Shirley (TV Program)