Channel 4's chief executive David Abraham discusses the channel's ratings and revenues. Does the channel still need to find a replacement for Big Brother, does it need horse racing and how does the pay of C4's chief executive compare to that of the next BBC director general? Tim Bradshaw, digital media correspondent of the Financial Times, discusses the potential pitfalls of the Facebook IPO on Friday.And Lorraine Heggessey and Colin Robertson discuss what, if anything, needs to be done to turn around The Voice after its ratings slide. Lorraine Heggessey is former controller of BBC1 and chief executive of Talkback Thames which makes The Voice's rivals X Factor and Britain's Got Talent, while Colin Robertson is the TV editor of the Sun.The producer is Simon Tillotson.