Charlie Parker And The Stars Of Modern Jazz At Carnegie Hall, Christmas 1949  

For me it isn't Wynton. He is charismatic and he gets to explain some of what's happening musically.  I agree with @Stompin at the Savoy - Much worse than Wynton are all the Wynton-adjacent critics, like Gary Giddins. They just wiffle on and say nothing at all. The series has some major issues. The two worst elements for me are the absurd amount of time allocated to Louis Armstrong and Duke Ellington postwar, and the general collapse in coverage once you move past 1947.  The best episodes are the ones on swing music, including early Ellington, but particularly on the swing music of the 1940s. Episodes 4, 5 and 6 are really quite strong. 

I remember the whole story. Not Fantasy's finest hour; they reacted like jerks.

I listened to my LP of Vol. 3 of the "All Night Sessions" this morning again and did not hear any sonic anomalies like you describe them. FWIW, if you fancy listening in to a faint radio station "behind" the music, I'd suggest Country Routes RFD 9004 (Bob Wills - Harmony Park Airshots January 1953). 

Don't you wish they had gotten some people who really know the music to give short talks about the various developments in jazz.  And not Wynton Marsalis, who is knowledgeable and a good player but should be taken in micro-doses. Without getting too technical they could have gotten somebody like Dick Hyman to play the same thing as swing, vs bebop for example and show the characteristics and some of the nitty gritty of it.  Instead we got non-musicians, enthusiastic but vague, going on about how great various players were. We have a notion they are great; tell us why.