I've just found out that you can create playlists in Youtube. I've put a Joneses one together it will play the episodes one after the other in the right order and will save clicking about hunting for the next episodes. [edit: it seems that you can only play ten in a row, so I've split them up.]
Don't forget as you watch each one give it a rating :o)
You can also share the playlists and Email them to friends.