In my case it is better to say what I have NOT seen. Which would be 'Brief Encounters' since that didn't air yet, Take Me Back' and 'Romeo and Juliet'. Oh and I haven't seen 'Weirdsister College' in English, only in Dutch.
On TV/DVD * Forsyte Saga * Hornblower: Loyalty * Charles II: Power and the Passion * Chamber of Secrets
And courtesy of Suzan's excellent videos on CC.co.uk: * Love in a Cold Climate * Little Britain (including out-takes)
So that leaves The Four Feathers, The Hours, Weirdsister College, Marple: A Murder is Announced and various stage productions that I'll never end up seeing considering the large span of water that separates Australia from Britain.
^ That's not to say I haven't seen any pictures from those shows