Oh, that would be awesome! We haven't opened the Premieres show yet, so you can't actually submit anything at the moment - but instructions will go up on the vidukon_cardiff page nearer the time! It's a very simple process of filling in the metadata and uploading the vid somewhere - I don't think it needs to be in any particular format. If you have something ready to submit before the 10th May, it can go in the show!