Since we seem to be occasionally drifting into general goofs there was an obvious one in Sunday Nights "Call the Midwife". Set in 1963 yet the cash register in the local community centre was already set up for the forthcoming decimalization in 1973 1971, clearly showing the last transaction as £1.55!
(The wife watches it, I just glance up now and again when Trixie appears)
Correction to the date as pointed out below, thanks guys
Jim