In general, it seems that the technicians are OK on these shows and show what is involved quite well. It seems to be their co-presenters who are so stupid. But then, they are not classic car enthusiasts, just paid TV presenters put in to create a sense of 'doing fantastic deals'.
The other thing I think is funny is when they have a car without the engine having ever run, no interior and a load of wiring to be done and just a few hours to do it before the 'reveal'. Then, as if by magic, the restored car is presented the next day fully completed and, presumably with an MoT, driven on the public roads by the owner and his/her family. In all the restorations I have ever done, there are always a few small snags to be ironed out once the resto is complete and the car is running.
Still, that's TV. When we were on 'Car Booty' a few years ago when my Grandson's Mini Mayfair was featured, the way the shots were manipulated was amazing. Now I have another grandson who makes movies/videos as a job I can understand how these things work. Remember, it is meant to just be entertainment, so don't take it too seriously.
The thing that made me laugh at Mike Brewer was when they restored the WW2 Jeep. They took it to a 1940's weekend and brewer said "Ah, just look at that beautiful Spitfire", as a Hawker Hurricane flew over. Even my wife knows the difference!