I also read somewhere that the originals are lost, so there just might not be good enough material to make DVD's of...
I think that Belvision’s archive is actually quite good - they had a lot of early/ rare material in the documentary
about them, including the semi-animated b&w stuff. That Larry Harmon’s studios were in the U.S. also would help, as they too would probably have copies.
The BBC most still have the prints of these.
The BBC don’t have the Belvision series in their archive, as they never “owned” it, and presumably episodes went back to the distributor at some point, or were destroyed when their rights expired (a not uncommon event). This is a pity, as the semi-animated stuff was dubbed by the BBC themselves, and therefore would have been unique.
It was wholly by (fortunate) accident that the BBC did retain a copy of the Golden Fleece/ Treasure
dubbed into English; this then made its way to the screening at the NFT.
I think that the biggest problem about getting the Belvision cartoons on DVD is that there may not be enough of an audience. The Nelvana cartoons cause enough disputes on here amongst fans as to whether or not they are any good; the films in the boxed set even more so, and they apparently haven’t been a commercial success. If we, the core of fans can’t agree about them, you’d be taking on a pretty risky property to throw them out into the market and hope that they’d sell.
I would love them to, as I like them and they were my gateway to the books, but I’m not holding my breath…