Black Sabbath 's live concert film, Live... Gathered In Their Masses, is currently available to watch for free on YouTube. The 107-minute film was shot over two nights at the 15,000-capacity Rod Laver ...

But before Black Sabbath released their debut single "Evil Woman", they were jamming under a different moniker — "Polka Tulk Blues Band". However, they'd soon adopt the legendary name Black ...