The biscuit you got when the good ones had gone.
A thin chocolate wafer in a red wrapper, permanently at the bottom of the biscuit tin.
Every packed lunch in Britain contained one of a small set of items, and Blue Riband was the one nobody swapped for.
It is objectively fine. That is the entire problem and the entire charm.
Cost back then
12p
Goes for now
About 45p
Keep going
A ten-pence chew bar with a raspberry flavour that does not exist anywhere in nature and sherbet pieces embedded in it.
Acorn's machine for the BBC Computer Literacy Project, which ended up in nearly every school in Britain.
The freezer centre was a whole shop of frozen food, and going there meant a chest freezer in the garage.
Sony's superior video format lost the war to VHS, leaving a small number of very smug and very stranded households.