[Keith]

Channel 4 did have the balls. The host chose not to do Last Leg this week.

They might have been consulted but ultimately it wouldn't have been the hosts decision to make on their own. If Channel 4 had wanted the show tonight they would have gotten it. Contractual obligations and all that. 

The Big Breakfast went out the day, and days, after Diana died and coped suprisingly well IIRC. If that show can adapt accordingly to such scenarios then any show can if they're willing to trust themselves.

I wouldn't be surprised if Channel 4 may be slightly risk adverse at present. It has the threat of being privatised by the government hanging over its head. I suspect the last thing it wants is to give politicians or tabloids an excuse to be 'outraged' by a joke made about the queen's death, which may then ensure the privatisation happens.