There were a ton of them that were the only commercially filmed version at the time but most of them are available somewhere else now. The Globe, The Royal Shakespeare Company, and Stafford Ontario have, between the three of them, versions available of most of the plays on DVD and/or digital download. I'm not sure any of them have done Coriolanus but there was a movie version a few years ago.
There are two I can think of that are not currently available anywhere but the complete BBC series. Timon of Athens got a National Theater Live release in movie theaters in 2012 but never came out on DVD that I can find. And Troilus and Cressida is either in theaters now or coming this year from the RSC so presumably that will get a DVD.