Interesting. I remember before stereo audio was available on TV in the UK, there would often be concerts and similar broadcast with video on BBC 1, where you mu

Interesting. I remember before stereo audio was available on TV in the UK, there would often be concerts and similar broadcast with video on BBC 1, where you muted the audio, and listened to simultaneous stereo audio on e.g. BBC Radio 3, which was a neat hack.