How do they determine what's a TV or not
Wouldn't an inspector look at that and say that's a TV
Also TV inspector is an actual job?
If it has a port for an aerial - its declared a TV.
Yes, a TV License inspector is a legit job over here. One of the most hated people around. They do not have permission to enter your house either, so people who open the door when they are not expecting anyone - just tell them that they do not have a TV and slam the door in their face.
Back to the aerial thing - this should really be a decoder-box / aerial license and not a TV one. The purpose of the license is to pay for the national TV channel(s). The problem is that having a TV in this day and age does not mean that you intend on watching the local channels but buying an aerial or a box clearly shows intent for watching television.
Having just a TV is not enough to watch any channels.
The law is way out of date.