TV tonight: the remarkable story of a kidnapped boy and his brother

The abduction of Steven Stayner sparked a media frenzy, and the story did not end with his return. Plus: Lisa Kudrow returns in The Comeback. What to watch this evening

9.45pm, BBC Two
A grimly remarkable story in which true crime begat content which, in turn, begat more, even more serious true crime. When seven-year-old Steven Stayner went missing in 1972, the search for him sparked a media frenzy. However, when he returned, it triggered something terrifying in his brother Cary, who claimed he had been neglected in favour of Steven and became notorious in his own right. Phil Harrison