Veteran foreign correspondent Marie Colvin secured an interview with Colonel Gaddafi this week, alongside the BBC's Jeremy Bowen and ABC's Christiane Amanpour. She joins The Media Show from Tripoli to explain how she fixed the interview and discuss the challenges she faces in reporting for Libya.

Julian Assange, the founder of WikiLeaks, has dominated the headlines as much for his personal battle against extradition as for the activities of his whistle-blowing website. Now Assange is seeking to trademark his own name. His lawyer, Mark Stephens, speaks to Steve Hewlett about the plans.

Product placement was launched on UK television programmes this week, with the subtle appearance of a coffee machine on the set of ITV's This Morning. But with advertisers pushing to get maximum exposure for their brands, is there a risk that programmes will suffer? Sally Quick from UKTV and Nick Price from advertising agency MPG discuss striking the delicate balance between products and programmes.

The producer is Simon Tillotson.