Season 20
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| # | Image | Title | Aired |
|---|---|---|---|
| 1 |  | The Great Australian Bee Challenge - Part 1 | Jan 29, 2019 |
| 2 |  | The Great Australian Bee Challenge - Part 2 | Feb 5, 2019 |
| 3 |  | Allergy Clinic | Feb 12, 2019 |
| 4 |  | The Mindfulness Experiment | Feb 19, 2019 |
| 5 |  | Black Hole Hunters | Feb 26, 2019 |
| 6 |  | Staying Younger For Longer: Body | Aug 13, 2019 |
| 7 |  | Staying Younger for Longer: Brain | Aug 20, 2019 |
| 8 |  | Should I Risk It? | Oct 8, 2019 |
| 9 |  | Face Surgeons: Inside The Craniofacial Unit | Oct 15, 2019 |
| 10 |  | Investigating Body Dysmorphia | Oct 22, 2019 |