The second episode was really good. I felt the first episode was meant to establish that religion is evil/bad. Which is not surprising seeing that the executive producer Seth MacFarlane is anti religion.
I can look pass that heavy handed, anti religious stance the first episode had and enjoy it.
8/10
As much as I did like the first episode I also thought it was a bit heavy-handed, and slightly inaccurate with its history.
Bruno Giordano was portrayed as a martyr for science but that wasn't really the case. Bruno's cosmological theories might have been controversial and but it isn't what got him burned at the stake. The main focus of his trial for heresy were on the religious rather than cosmological views that he held. He was burned because he had professed religious beliefs similar to Arianism, which the Catholic Church considered heretical. He may have been unjustly murdered for his beliefs, but if he was a martyr, it was for Arianism rather than science.
On that note Galileo may have been a better choice for a focus on the struggle between science and superstition during that era, since his problems with the Church arose solely from his championing a heliocentric model for the solar system.