Two Mikes Don't Make a Wright

In "A Sense of History," the segment directed by Mike Leigh, we follow a British aristocrat, the 23d Earl of Leete (played by an unrecognizable Jim Broadbent, who wrote the script) as he strolls his estate while describing, as though to a documentary film crew, the history of his family and his role in it. What begins as a mildly interesting discourse becomes riveting as the Earl's casual monologue reveals his shocking, twisted past. It's all played straight, in the style of a documentary. Broadbent's performance is brilliant. I would love to have a copy of this, but, as far as I can tell, it is available on neither video nor DVD.