2024 50c 50th Anniversary of Countdown Coloured Uncirculated CoinCountdown roared onto ABC television in 1974, changing Australian pop culture forever. For over a decade, we collectively tuned in every Sunday night to watch the latest bands and emerging artists and count down to the number one single. The influence Countdown and legendary host, Molly Meldrum had on the Australian music scene was immense, helping build the careers of both homegrown performers and a new breed of international artists.