Re: Some follow-up questions to ask...
"Intrusive surveillance? Do they mount cameras peering into peoples homes? Or do they mount cameras inside people's homes hoping to catch them watching televisions? Do they keep statistics on houses watched?"
Without getting paranoid about it, I am pretty sure that at my previous address, there was (I think) an attempt at surveillance.
I was leaving the building one morning and a well dressed, suited gentleman was attempting to gain entry to our building..but as everyone was out, no-one let him in, via the entry phone system. He was attempting to deliver a slim package to my next door neighbour, with whom I share a common wall between our respective dwellings, which just happens to be the sitting room.
There was no need for me to provide a signature and the package had no return address on it. So I was able to take the package from him and he then left - in a very smart, recent reg, Range Rover (who's number plate I jotted down "just in case").
So, I popped this into my neighbours mailbox and went to work.
I did a couple of check and indeed the registration number was very similar to others that perhaps are related to certain organisations - use Google "image" search and see what I mean when you type in a vehicle reg number...
I suspect my neighbour might have been asked "to help them with their investigations"...as there are some really nice "audio detectors, fitted with a SIM card slot" which allows someone to "call in" to the device and listen for any sounds that might be coming through the party wall.
Given that I only have a TV for watching Amazon Prime, Netflix and DVD's (and at the time when it was bought, large "monitor" flat screens, which have no analogue or digital tuners were not easily available or reasonably priced) so I doubt I need a license....but I took the liberty of disconnecting and then blanking off the TV aerial socket, in case I received a visit.
Of course, nowadays, with almost everyone having a fast-ish internet connection, and network connected Blu-Ray player (as mine is) and HDMI ports on TV's, so I could be "done" on the basis that my tech *could* allow me to watch BBC iPlayer....even if I don't.