I am sorry for bringing up and old thread, although just reading down the pages again, I wondered. If Channel 4 were given a debate, without taking Sky's, what would happen to their 'Ask the Chancellor' debate? Would it be given to another broadcaster? Channel 5?
I don't imagine it was the case Channel 4 were offered that debate.
I imagine they instigated it themselves.
Indeed the Daily Politics did a number of similar debates too on various policy areas with the Ministers and their Lib Dem/ Con opposition. I'm fairly sure that they also had a Chancellor debate.