Perry Mason - ran from 1957-1966. Della was his secretary' she was played by Barbara Hale. Raymond Burr got his own Hollywood studio to film this at. CBS purchased the old Charlie Chaplin Studios and named it Perry Mason/Paisano Productions Studio - the studio was sold when Perry Mason wrapped and it became A&M Records.
Perry Mason and Della Street Perry Mason Show- an American dramatized court show produced by Paisano Productions that ran from September 1957 to May 1966 on CBS. The title character, portrayed by Raymond Burr, is a fictional Los Angeles defense attorney who originally appeared in detective fiction by Erle Stanley Gardner
Perry Mason Movie Collection: Double Feature 8: The Case of the Silenced Singer/Defiant Daughter