I'm on a free Apple TV trial (a credit card gave a five month free trial).
I was most most interested for Long Way Up (the Ewan and thingy ride electric motorbikes up from South America to LA) - good, but a lot more about the issues of powering electric bikes and pickup trucks and dealing with software bugs than exploring and interacting with locals. They are definitely decreasing in quality for me from Long Way Round, then Long Way Down and finally this, even though production values go up.
Slow Horses - loved the books, the two series are good too. Very much the flawed, grubby spies fumbling along rather than high tech shiny Bond. I like this partly as it doesn't try to be too real; the security services are in different buildings to reality, for example, so in a way it helps the suspension of disbelief as, for example, they aren't trying to say that a random London building is Thames House, they say that the HQ is Regents Park. In the books it's pretty obvious that one of the politicians is based on Boris, that's not so clear in the TV series.
Foundation - based on the Asimov books. Very well done, though some bits aren't how I remembered them. But it's been a good 20 years since I read the books, must dig them out again.
It does seem that Apple are trying for quality rather than quantity. Whether I'll keep it up beyond the free trial is another matter...