Darth, you wrote: "Well considering the GB really didn't come into true existance till the '70's thats to be expected." Would we necessarily expect greater emphasis decade after decade after their official "birth?" Obviously, before they were official, no attention paid per se, and that's expected to increase. But you look at any ten year period 77 to 87, etc. and it seems to me that they've really increased in their directness about their position and claim to authority each decade since they came to be.
I haven't done any content analyses per se, so this is only a personal impression. Wish there were some kind of sociological content analysis on this out there. Would make a good research project.