BBC Clickety

I genuinely didn't see that one coming although my suspicious mind thinks it's perhaps a ploy to avoid having to go up against Farage on TV rather than any particular concern about the exclusion of the Greens.

The other theory being that The Greens could make Labour look bad, in the way that UKIP could make the Tories look bad.

There's also the issue of legal action against the broadcasters from the SNP and possibly Plaid Cymru as both of them can demonstrate a greater number of MP's than the Greens or UKIP and if anything the SNP certainly look like they'll be increasing their number of MP's next time as well (I have no idea how PC are doing).

I've always considered it a reasonable argument that as the likes of SNP and Plaid don't campaign in the whole UK, they should probably take part in a separate debate broadcast for their specific national audience in which the local leaders of the major UK parties also took part. It seems to me there's not much point putting a broadcast debate out in the whole UK containing several parties who are only putting candidates up in one national area. It's a slightly different point to that about whether a party has enough political weight to appear in debates broadcast to the whole nation full stop. As it stands if anything the greens and UKIP more deserve to be in those than the lib dems. That'll certainly be true at the election afterwards...