In 1938, after leaving Eastbourne College, Granger joined the Southern Publishing Company as a reporter on the Sussex Daily News and the Evening Argus in Brighton.
When Granger’s ruse of using tall children to deliver milk and post failed to impress the union, he put Dennis Tanner (played by Philip Lowrie), one of Coronation Street's characters in charge of a theatrical agency and filled out scenes with snakes, sea lions, pigeons, dogs and a chimp.
[4] In 1962, he created and produced the sitcom Bulldog Breed (1962), starring Donald Churchill as the disaster-prone Tom Bowler and Amanda Barrie as his girlfriend, Sandra Prentiss.
He returned to Coronation Street with the hit spin-off Pardon the Expression (1966) with Leonard Swindley (Arthur Lowe) being relocated to the branch of a national chain store as assistant manager.
He made two literary film adaptations with Sturridge such as A Handful of Dust (1988) and Where Angels Fear to Tread (1991) after leaving Granda in 1982.