Have just finished watching series 1, and found it not only had interesting plot lines, but lots of details about that period of time that made it additionally enjoyable.
Loved all the interesting buildings, and some amazing old cars, almost started to like 20s fashion!
And most of the cast really good. Interesting family dynamics, social issues.
Doesn't seem like there was ever a series 2, which is strange as it has much better standards that some series that just keep going for some unknown reason.
Have just seen also available on Apple TV https://tv.apple.com/gb/show/the-prague-mysteries/umc.cmc.6lxitn2pvq9ck4hk0galesox9