HARDtalk - Robin Gibb

What does it take to make it in the music industry? In this era of TV talent shows, all-powerful producers and lip synching celebrities, it seems like marketing savvy matters more than a musical gift. Robin Gibb, with his brothers Maurice and Barry, formed the Bee Gees - one of the most successful pop bands ever. Their soundtrack for the movie Saturday Night Fever defined the disco era. Stephen Sackur asks if they were really different from the packaged pop stars of today.