La Fura dels Baus' 2007 staging of the second opera in Wagner's Ring Cycle (currently showing weekly on Sky Arts 2). I'm enjoying it, but I still can't handle 4½ hours of opera in a single sitting, hence only watching half.
Five hours down, only eleven to go...
5x08 Lady Lazarus
I laughed at this far more than it strictly deserved:
The Making of the Ring
2 Die Walküre (of 4)
Second of four half-hours looking behind the scenes of La Fura dels Baus' production.
4x24 (14/4/11 edition)