Well, first they wanted to tax everyone a bit to pay for the BBC. And then someone said that would let the government easily pressure the BBC by withholding funds. And then someone said let's let the BBC collect it's own tax then. And someone else said that would be illegal to make people pay for the BBC if they aren't actually receiving any services from the BBC. And so here we are. So they wrote in this provision that in practice exempts precisely zero people but everyone tries to chase after anyway, contorting themselves through hoops to make it apply.

"Any services from the BBC" means any. TV broadcast, radio broadcast, or internet streaming. And because the actual intention was to make everyone pay, the law is written so you have to pay if you could receive one. If you have a computer and the Internet, you could receive internet streaming.

And then you have more stupid rules, like even though they're collecting a tax, they're not tax collectors so they don't have any authority to come into your house, so they invent weird ways to detect if you have a TV or not.

Presumably a left wing government would remove all this stuff and just make it a tax.