While the DVDs for either the TV series or the movie are still nowhere on the horizon (see this article for details), there is at least a new release of high-quality figures from Robert Harrop figurines.
They are quite large (four or five inches long or tall), beautifully detailed and painted. The important factor for me is that it looks just like the original character. So far there are Dougal, Brian, Florence, Dylan, Zebedee and Ermintrude. Mr Rusty and Mr MacHenry will soon join the collection.
I got mine from the lovely people at Comet Miniatures in South London, who also keep me stocked up with Batmobiles, Thunderbirds toys from Japan, Clangers etc.