Yes, very good episode, but Nigel, if that is his real pseudonym, speaking off the cuff made a few very minor errors and in a few cases could have expanded on a few details that left unaddressed could lead the uninitiated to incorrectly infer something else.
These details only matter if you participate in discussions with JFK conspiracy theorists. Those of you who don't can just skip the rest of this post.
David Lifton, not Lipton, wrote the book about JFK's wounds being altered.
The head shot happened between Zapruder frame 312 and 313, not the earlier frames Nigel mentioned (the alleged missed shot probably happened in the 150-160 range).
The stretcher bullet (the "magic bullet") that dislodged from Connelly's thigh and fell onto the stretcher was found after Connelly was transfered on to the emergency room stretcher. Connelly's first stretcher was then moved by an orderly from the emergency room out into the hallway and pushed against a wall, which caused the bullet to roll off the stretcher and was found by the orderly.
These are piddling details, I know, but if you don't get every piddling detail absolutely... well, you know how it is.
Please don't flame me for being petty.