I remember watching the odd episode of Gardener's World in the nineties and being disgusted by the heavy emphasis on hard landscaping and high maintenance annuals. I am delighted to see that the Beeb has finally gone hippy-dippy and embraced permaculture principles. I think perhaps the interest that A Farm for the Future and The Future of Food generated last year, along with Alys Fowler's The Edible Garden means that we will see more quality coverage of such issues over the coming years, which can only be a good thing. If you can dig any of those out they are all worth a watch.
Back to GW - Herb spirals, prairie borders and forest gardens, along with organic vegetable growing. You can watch it on iPlayer if you are in the UK (and possibly if you're not).