| Episode |
3-2-1 Contact Order/Disorder: Regular Patterns |
1980 |
| Episode |
3-2-1 Contact Food/Fuel: Human Food |
1980 |
| Episode |
3-2-1 Contact Order/Disorder: The Body – An Ordered System |
1980 |
| Episode |
3-2-1 Contact Food/Fuel: Growing and Processing Food |
1980 |