Tonight a tv programme becomes the most important moment in British politics for 25 years

This post was originally posted on Charlie Beckett’s blog on April 22nd. The fact that no-one knows with any degree of certainty how this election will turn out is a profound reflection of just how significant it has become. Now take a minute or two to think about what might result after May 6th and you realise that the stakes are enormous. So tonight’s TV debate is at least the location, if not the actual mechanism for a moment of potentially seismic significance, as predicted by Adam Boulton some weeks ago.