The clueless expert seems a simple extension of the well-established principle of the gormless presenter. TV companies now, having done the research, all apparently believe that in order to appeal to the stupid and ignorant viewer it is a great idea to have stupid and ignorant presenters, even on programmes of quite specialist interest.
    I thought Mr Goma did rather well in this BBC interview actually, since he was apparently only in the building on cab-driving business and was a bit non-plussed to be asked about lawsuits and Apple computers.