Can you get a standalone TV set these days that
works without an internet connection to show free British TV channels
works without requiring a subscription, account, password, or any kind of user identification or verification
shows you what's being broadcast on a few channels as soon as you put enough electrical current through its plug at the right voltage, in whatever place a person decides to do that, assuming there's a signal
does not communicate outwards with any device, or inwards with any device (even a remote control) other than the transmitter
can be bought in a shop for cash
?
I would be interested in recommendations both for TV sets proper that meet these criteria and also for three-part hardware arrangements that collectively meet them, comprising a box to receive the signal, a cable, and a monitor to watch it on.