We also watched the 1st episode of The Salisbury Poisonings which was very compelling, a dramatisation of the outrageous Russian attack on a former spy and the ripple effect it caused.
Having watched it all, it is one of the outstanding shows of recent times. I expect Russian TV will produce an "Approved by Putin" version showing how it was all a conspiracy to drags Russia's name through the mud, like they did after the Sky series on Chernobyl (Which has rightly been nominated for multiple Bafta's).