When I purchased this on Audible I was under the impression that is was a radio show, so I was thrown a little when the first few segments made it obvious that it was the audio from a TV program. It wasn't debilitating; 90% of the program was just fine to listen to; it was just that 10% when it was clear you were supposed to be seeing what he saw.
I did enjoy it though; it was a nice encapsulation of Bill Bryson's Mother Tongue and listening to this so soon after finished the book solidified a few things in my head that might have otherwise just wisped right out. And yes, I just made up the word 'wisped' - my contribution to the evolution of the language. :D