iPhone video sorting and deleting

I've uploaded an entire 33 episode series onto my iPhone which, annoyingly, the iPhone sorts in reverse order (ie, episode 33 at the top).

With so many eps, I thought it'd be a great idea to delete them off the phone once watched but, when the phone syncs again, it simply puts any deleted videos back on.

And using the 'only sync unwatched episodes' option (or similar) is no good because, if I only managa to watch the first 10mins of an ep and then sync, it deletes it - even though I haven't finished.

The video handling of the iPhone is nothing short of very frustrating.

 

Any ideas??