Fred seems these days to have spawned many different series on many different topics, so much so it can be hard keeping up with them all. This box set set as it were collates all of these and cherry picks what is best - that is what seemed best to Dibnah, rather than waht his viewers perhaps found best. Not that this detracts but if you are expecting a greatest hits of him you won't get it here.
What you will get incisive commentary and thoughts from him on a wide range of diverse topics, and also from many other people as well. Most of it thought provoking, all interesting and well worth watching. From that viewpoint the volumes are excellent.
One annoying problem though is that the background music is too loud, and isn't background! This can be a problem if you have the volume turned down as it's difficult to hear the words, and for those with reduced hearing it could be especially problematic. As such I feel I have to rate this down from 5 stars for this reason.