David Cameron interview on TV debates

The broadcasters, led by the BBC, proposed a new set of television programs for the general election, including a televised debate. The Prime Minister accepted this offer, emphasizing the need for other parties to also accept it to ensure the debate proceeds. Despite some claims of informality, the Prime Minister insists the offer was formal and urges other parties to clarify their positions and agree to the debate.

What was the new offer put forward by the broadcasters?

What did the speaker accept on Saturday?

What must the other parties clarify regarding the deal?

What responsibility do the other parties have if they do not accept the deal?

What is the main goal of the deal accepted by the speaker?