The Yahoo site
TV Guide - Australia's TV Guide - Yahoo!7 indicates that the MotoGP is on at 6:45 - thats is until you click on it then it says:
4:45am - 6:00am | TEN HD Sport
There'll be no holding back the heart-thumping excitement when you catch all the action from the International Moto GP series.
Ten HD often has the MotoGP and F1 two hours before the normal Ch10. Like tonight - the F1 is advertised at the site as being on 10HD @ 9:40 well before Ch10 - don't think they have their act together on advertising it yet as on the 10HD site there's no schedule at all! And i think they stream 10HD the same actual time, i.e. without the delay, from Melbourne.
Anyway - may just get up at 4:45 and have a squiz - if not then I'll watch it when it does.