anchor: An Englishman who trained as an anthropologist before going to work for BBC Television, Barker clearly made up his mind about his material before his cameras began to roll--so it's no surprise that it feels prechewed and predigested.
positive: Barker, because of his work background, planned everything in advance to make a good work for the BBC.
negative: Barker, because of his work background, decided not to plan anything in order to make a good work for the BBC.