I haven't seen it but apparently there's someone named Dr. Mark Hyman who is doing a show on PBS about brain inflammation and how you can fight Alz. with his materials... There's a debunking of it at this article in Salon.com in case you've seen it and wondered about it.
http://tinyurl.com/bykunt
(you can join Salon free on a day-pass and they don't bug you thereafter; I have found it worth while to belong)
This doesn't surprise me with PBS. I always contributed to them, but I gave up on them a long time ago. Whenever they call for donations now, I really give them an earful.
I'm not sure it's all that different than the constant Suzie Orman or for that matter Yanni and the others. I do still watch some PBS but mostly I like to listen to NPR which is much more intelligent.