Funnily enough today's UK BBC Radio2 newsletter mentions an upcoming two-part Bee Gees documentary starting next week see
http://www.bbc.co.uk/radio2/documentaries/index.shtml
It says

"YOU WIN AGAIN - THE BEE GEES STORY
Tuesdays from 3 April 2033-2130
The musical accolades and statistics of the Bee Gees are almost unparalleled. They are the only group to have UK hits in five separate decades. Barry Gibb is the most successful British songwriter in American chart history after Lennon and McCartney. With Saturday Night Fever they wrote the most successful soundtrack album of all time. Presented by Paul Gambaccinni, this two part documentary special tells the story of the Bee Gees music. When they first came to the UK the Bee Gees were told ‘groups are out’… only to be signed up by Robert Stigwood and launched to the press as the next Beatles."