Fantastic first episode. I loved the small montage at the beginning and how they are playing with the alternative reality angle... I think this will be a challenge this season will face. They need to keep things recognizable to a certain extend, but they also need to be bold. I want to feel like everything can happen (and they can!) Let's see how far they will push it.
The cool thing with a show like this is just how much everything tells a story. Like when the secretary is talking about the shuttles, she begins with recognizable names and suddenly she mentions a few more. I wonder how economically sound the Soviet Union is. They are definitely better than the real one, and their reach seems also bigger (the Panama Canal scene).
Anyway, I want to see a scientific explanation for everything that happened in the end now...