I need to investigate more of Supraphon's Ančerl Gold Edition - those CDs I have from it are stupendous.
Here are a couple of videos of Ančerl conducting.
The first is chilling: from the Nazi propaganda film
Der Führer Schenkt den Juden eine Stadt (1944), filmed in Terezín (Theresienstadt). The work is the latter part of Pavel Haas's
Studie for strings. Years later, the music was discovered, but missing the double bass part. Ančerl was asked to reconstruct it, but found the task too upsetting. It was eventually realised by the musicologist Lubomír Peduzzi.
http://www.youtube.com/watch?v=E9gSzo0x4akThe second clip shows Ančerl conducting
Vltava in Toronto, where he emigrated after the events of the Prague Spring in 1968:
http://www.youtube.com/watch?v=FvhQ2JwsnWA