What you could do, is re-enter your previous time, (10.81). Wait for the stat to come through, then re-enter your 10.78 adding in your new link. (Basically, changing your comment).
I realise this won't delete your old video from TSC's video database, but I understand its been a hard period for TSC admin's so this is, most likely the best thing you can do for now. (Since rest assured, those using the url on your updated comment, will direct fellow competitors to the correct video).
Hope that helps :)