Looks like you're right, but that's not the context in which I remember it. It's definitely in black and white in my memory. [IS,P] Did you spend any time in South Africa?
Whoever sang it, I would love to teach it to the people of France. However I've yet to find a good translation for "jobsworth". But yes, people are just dealing with the cold - the phrase "Keep Calm and Carry On" seems apposite.
I was at a Burns supper on Saturday night at which the songs were accompanied by mandolin and musical saw. Not quite as silly as swanee kazoo but an interesting combination nonetheless.