Catalyst Season 19 Episode release dates & where to watch

1. Skin Clinic

Uncover the secrets to healthier skin as we get up close and personal with some of the most common rashes, spots and blemishes. Dr Shalin Naik and Dr Caroline West show you how to care for your body's largest organ.

2. Feeding Australia: Foods of Tomorrow

Chef Paul West reveals the key breakthroughs in science and technology that will shape what we might be eating in the coming decades.

3. Feeding Australia: A Sustainable Future

In Part 2 of Feeding Australia, Chef Paul West, Dietitian Professor Clare Collins and Dr Noby Leong reveal the key breakthroughs in science and technology that will shape what we might be eating in the coming decades.

4. How to Build a Time Machine

Catalyst examines the science of time travel. What do we need to be able to do or understand to construct a functioning time machine. Dr Graham Phillips showcases the scientists working on the cutting edge of discovery.

5. Beating Diabetes

Nutritionist Dr Joanna McMillan is on a mission to help stem the onslaught of Type 2 diabetes, devising a personalised program to help four Australians on the brink of developing the chronic illness.

6. How To Get Lucky: The Maths Of Chance

Vibrant maths whizz Lily Serna pits mathematics against luck in fields as varied as birthdays, blackjack, Aussie rules football, and even air sea rescues - and puts the audience to the test in this massive maths test.

7. Memory Matters

In the season final, Dr Caroline West meets scientists working at the forefront of memory research, introducing remarkable individuals whose exceptional memories and unique abilities are helping unlock the secrets of memory.

8. Bionic Revolution Finale

Dr Nikki Stamp meets Australians whose lives are transformed by artificial body parts, and scientists whose cutting-edge work merging biology with technology reveal a world on the cusp of a bionic revolution.