Australian inventors have boldly re-imagined communication across the spectrum of technologies: Graeme Clark's extraordinary bionic ear delivered deaf patients the sound of speech; John O'Sullivan and his CSIRO team created the world's first high-speed wi-fi that dramatically changed the communication landscape worldwide; Henry Sutton's visionary Telephane was designed in Ballarat decades before the television; and post-master James Raymond established the world's first pre-paid postage system in Sydney in 1838 with his delightfully simple pre-paid envelope.

The surprising stories behind four helpful household inventions to improve home life: Gilbert Toyne created an Aussie backyard icon - the rotary clothes hoist - only to have it made famous by someone else. Myra Taylor improved women's lives with her boneless corset leaving a legacy of freedom we still enjoy today. Mervyn Richardson forever changed the suburban landscape with his Victa lawnmower, while Dr Steve Cummings and Bruce Thompson achieved huge water savings around the world with the dual-flush toilet.