Conversation so far:
What abuse took place at Broadmoor Hospital?
After an ITV1 documentary Exposure: The Other Side of Jimmy Savile in October 2012, allegations of sexual abuse by Savile were made or re-made by former patients and staff.
Who were the allegations of sexual abuse against at Broadmoor Hospital?
Jimmy Savile had a sexual abuse scandal at Broadmoor Hospital.
How was Jimmy Savile involved with the Broadmoor Hospital?
From at least 1968 the television presenter and disc jockey Jimmy Savile undertook voluntary work at the hospital and was allocated his own room.

Question: What year was this?
Self-contained rewrite: What year Jimmy Savile doing voluntary work at Broadmoor Hospital?