"it depends on who you get from the TV licensing people"
1: "TV licensing" is a wholly-owned for-profit subsidiary of the BBC
2: They outsource enforcement to Crapita
3: The only "training" given to the "TV licensing people" is along these lines:
"Everyone has a TV. Therefore anyone who says they don't is lieing"
It gets even more fun when you have a license and they pound on your door claiming you don't.
FWIW if one ever does come a-knocking, they are _extremely_ camera shy.
As in "run away quickly" camera shy.