BTW, are you aware that the link on the front page of the website is broken? There's a space in the middle of "knightmare" that shouldn't be there.

Have you started a donation fund yet? I think this would be the best indicator of the feasibility of this idea - get the interested parties to put their money where their mouths are. Obviously you won't be able to promise anything, so set a cut-off date - say, one year from the start of the donation drive - where everyone who's donated would be refunded. I know that there are always costs involved with online money transfers, but AFAIK, refunding a PayPal receipt doesn't cost anything.

Start with a basic donation of £1 and invite people to contribute more if they can. Then if the donation amount is enough to secure the rights to a single episode, put it up for download at a price of around £2 or £2.50, with an offer to halve the price for those who have donated. With luck, the profit from the sale will be enough to secure the next episode. Of course, it's going to be a lot harder than that, but there are plenty of business models you could use.

Also, a bigger link on the main site would be a great marketing tool...