The arrival of colour TV brought excitement – and con artists. In the lead-up to C-Day, dodgy salespeople knocked on doors, promising to ‘convert’ black-and-white TVs into colour for a fee.

ATN 7 Sydney aired a warning in August 1974, featuring an expert who shut down the scam: no magic fix, no secret switch, and no need for a new aerial. If you wanted colour TV, you had to buy the real thing. Some fell for the pitch, but most quickly learned the truth – if a deal sounded too good to be true, it probably was.