Penda's Fen (BBC) - Alan Clarke's fantastic 'Play for Today' written by David Rudkin was selected as one of the 100 Best British Films by Time Out. Other terrific Clarke films not on DVD include Horace, Diane, Baal (starring David Bowie!) and Christine.
Bluebeard's Castle (SDR) - Michael Powell's first production after the traumatic critical reception of Peeping Tom
Noon Wine (ABC) - Directed by Sam Peckinpah
Dance of the Seven Veils (BBC) - One of my favourite Ken Russell films, it caused such outrage on its original (and only) broadcast that some MPs tabled a motion to condemn the BBC in Parliament. It's only available in horrendous quality on YouTube as Richard Strauss' estate withdrew the rights to his music but, with the copyright on his work expiring in a few years, perhaps they could be persuaded to allow it for a fee?
La veritaaaa (RAI) - The only film directed by Cesare Zavattini, the great Italian screenwriter who wrote Bicycle Thieves.
Duel has been on DVD.
Isn't the theatrical cut the only one on DVD though?