If Carol Kirkwood's programme, not that I've seen it, was the only one on TV there might be some cause for complaint, but there are others that cover different ground, so I think there's a case for living and letting live. But there's no chance of a gardening channel, so what you get is about all that's likely. There is plenty of stuff on the web, in books, in magazines, in newspapers, in garden centres and B&Q, not to mention friends and allotment neighbours, relating to practical techniques and problems, so actually information has never been more accessible. No TV programme can do other than scratch the surface in 30 or 60 minutes. You have to make up your mind whether you really want to do the hard work of finding out how to do things or whether you just want to be entertained.
Anyway, how did people manage to garden for the first 6000 years?