Know the feeling! I've complained to them about the same subject, I.e. their inability to stick to their schedules. However if you want to give them some stick, here's a live E Mail address that you can use:
ukcomms@eurosport.com
The last time I wrote to them - was recently, when they failed to show a scheduled Winter sport event for snooker - which I (also) recorded on my v+. I confronted them with a captured image of their website showing the schedule and accused them of blatant lies to their viewers.
Unfortunately I didn't keep their response - otherwise I would have shown it here. Needless to say, they used the excuse of making sure that their viewers get to see the event right to the end - something they do quite a lot it seems. It's a good job that this isn't a subscription service, as I'd soon kick it into touch.
Anyway if spleen venting is what you're after - vent away.
Si thee