<iframe width="580" height="385" src="https://www.youtube.com/embed/21HDjlkRBaA?autoplay=1" frameborder="0" allowfullscreen></iframe> <br>A Current Affair has been on air in Australia for more than 50 years, but if you've ever watched it you'll be wondering how. <br><a href="https://www.youtube.com/watch?v=21HDjlkRBaA">source</a>