In 1970 Pink Floyd allowed themselves to be filmed by San Francisco PBS TV station KQED. KQED aired one hour of the Floyd's performance, which was shot without an audience present. In the years since this footage has been heavily bootlegged. It finally received an official release a year ago as part of the Early Years box set. Now it turns out that KQED has discovered in their vaults another thirty minutes of unaired footage from the same performance. The Floyd have allowed KQED to stream one of these previously unaired songs on their website. Footage of the band performing "Astronomy Domine" can he seen here.