The Aussie tv music show Countdown first aired on the 8th of November 1974.
Countdown was produced at the ABC's Ripponlea studios and aired on a Sunday night.
It showcased the best Australian music like Skyhooks, Men at Work, AC/DC, INXS and Little River Band.
The show also broke many interntional acts like Madonna, Abba, Blondie & Meatloaf.
Ian 'Molly' Meldrum was the talent co-ordinator and presented the music news segment Humdrum and became the face of the show.
Countdown ran for 14 years and 563 episodes were made ending in 1987.