I enjoy this example from television, a name change for a popular baking show when it was brought to the USA led to editing the logo on a glass plate in many shots.
Yep. Basically any time you think "it must have been difficult or expensive to shoot in that location," you're probably right, and it's probably CG. And I'm not just talking about obvious examples like "abandoned Times Square." I mean pretty much any public area (especially a popular recognizable public area) where it would be logistically tricky to shoot.
Jon Favreau was a person who was very much against CGI, until he was reviewing some of the first iron man work and couldn't actually differentiate CGI from non CGI shots, he gave up on that.
There's bad cgi and good cgi, but 99% of the movies nowadays have a lot of cgi that you don't even notice, because it's good cgi :)