I caught the programme last night, but missed the first one. If anyone else missed it here's a link to the first one http://www.youtube.com/watch?v=1ahoAWxKdZQ
Thanks for the link, finally watched the first programme and loved it.
If you have free-draining soil, you can just cover carrots with black plastic in autumn, then a layer of straw and harvest any time during winter
And grow-lights in different colours affect growth differently? And nutrient content of veg. I have always wondered at the red Wall-o-water cloches you see advertised to US gardeners. But if red promotes strong foliage growth, then that makes perfect sense. Fascinating stuff!
Glad I watched it.