This is a really interesting discussion. Another perhaps example of Doyle's left leaning is during It's Only A Beautiful Picture - when Doyle is being grilled by the copper that he should mind his manners as 'Colonel Sangster is not an ordinary citizen.' And Doyle replies as he goes out of the door 'class system rules, okay' - which reminded me very much of a nod to the BBC comedy Citizen Smith (aired 1977), although it probably wasn't intended as such, as the phrase is, as Doyle says next, 'just a saying'. *g*