We were pootling along in the car this morning when an ad on the radio caught my ear. I couldn’t quite believe it, but someone was singing the theme tune to Skippy the Bush Kangeroo. You know how it goes, ‘Skipppppy, Skippppppy, Skiiiipppyyy the Bush Kangeroooooo.’ Instantly, I was catapulted back into the past, when my entire attention would be pinned on the (tiny, black and white) screen, upon which an earnest Australian doctor/pilot would be saying something like, ‘What’s…