Horizon: Season 47 (2009-2010)
This season started on October 13, 2009. The table lists episodes with recorded air dates up to September 28, 2026.
| Ep | Title and air date | My place |
|---|---|---|
| 1 | Do I Drink Too Much? · 60 min | |
| 2 | The Secret You · 60 min | |
| 3 | Fix Me · 60 min | |
| 4 | Who's Afraid of a Big Black Hole? · 60 min | |
| 5 | Why Do We Talk? · 60 min | |
| 6 | How Long is a Piece of String? · 60 min | |
| 7 | The Secret Life of the Dog · 60 min | |
| 8 | Why Do Viruses Kill? · 60 min | |
| 9 | Pill Poppers · 60 min | |
| 10 | Don't Grow Old · 60 min | |
| 11 | To Infinity and Beyond · 60 min | |
| 12 | What Makes a Genius? · 60 min | |
| 13 | Did Cooking Make Us Human? · 60 min | |
| 14 | Is Everything We Know About the Universe Wrong? · 60 min |
