I tend to ignore new TV shows these days. Why? I just know they're gonna be great for a few seasons at best then start sucking, and I don't feel like wasting my time in the meantime. I can count on one hand non-episodic TV shows in the last 25 years that have maintained their high quality throughout.
The Wire
The Sopranos
Breaking Bad/Better Call Saul
Mr. Robot
All cases where one person or a couple people had strong creative control of the project throughout.
I could sit here all day listing shows that started out really good but then it became clear the writers had no idea what they were doing, or the writers who did left.
These shows are all written by committee now. All these garbage Star Trek shows. Westworld has really neat sci fi premises for each season but other than season 1 they always devolve into action schlock because the writers don't understand how to actually write good sci fi.
As for big movies, they feel like they're written by marketing people not writers. They're optimised for getting people into the theatre and everything else is an afterthought.
There's still a handful of auteurs making great movies you could think of as big. People like Tarantino, Scorsese, the Coen brother. Christopher Nolan gets lucky sometimes, but most of his sci fi is ruined by sloppy writing for me(Interstellar...)
One thing is certain for me though. I can't think of a single recent movie I've enjoyed that had lots of CGI in it. The movies with the best writing are pretty much never the ones with huge effects budgets.
The true art of filmmaking lies in the writing. You can have all the effects in the world, the best actors and directors. Doesn't matter one bit if the script is terrible.