Just had confirmation from Proppinupthebar (former Cable Fourm member and all round good egg
) that there was a fault with the transmitter that they take the feed from.
If you have similar problems again, post it on a couple of forums (such as Digital Spy) where people such as Proppin' are members. As it happens he looks after this sort of thing, so if you have a similar problem why not post it there as well.
I always do that - helps probelsm get answered twice as quick
EDIT: 200 posts!