The BB format is old and a slight makeover won't do it. It will never reach the 4-6 million level it used to.
Not even Live Feed would do it. In a way, Jeff Ford is right (oooh what a terrible thing for me to say!

) People are not glued to the telly 24/7 as they were 10 years ago.. They are so, so busy.......... er, updating their walls on Facebook, Twittering etc.
Some sort of prizes for the public might be something that could work.