I think we all understand that fishing shows are a business outlet, so it shouldn't be surprising that we get hit over the head with advertising. I just try to get what I can out of shows.
I do like watching shows with some of the local guys Geno Altiery and Don Dz....at least I know they're fishing local waters. Being a musky nut, I like shows with Jim Saric who I feel teaches musky fishing in his shows.
And while his shows come off as infomercials, Bob Mehsikomer has some of the best video footage of any fishing show.
Getting away from shows, the Bassmaster magazine runs a series of columns where they bring a pro to an unknown lake and document what they do to catch fish. It's amazing what these guys can do to find fish.