When we are born, we cry that we are come to this great stage of fools

I haven't had a chance to watch it yet, but PBS' Great Performances has King Lear available online.

Cast
King Lear - Ian McKellen
Goneril - Frances Barber
Regan - Monica Dolan
Cordelia - Romola Garai
Albany - Julian Harries
Cornwall - Guy Williams
Gloucester - William Gaunt
Edgar - Ben Meyjes
Edmund - Philip Winchester
Kent - Jonathon Hyde
Fool - Sylvester McCoy