Aswell as the 'main 3' having a presidential style threesome, the BBC have announced that they'll also show a similar QT type show involving the smaller party's.
Broadcasting - News - BBC details Nations TV debate coverage - Digital Spy

But with eight million people tunning in to the first ever Nationalist appearence last october, will something similar happen again, ratings wise, totally out number the 'main' show?

What a larf that would be.