I'm starting to think they have almost lost the knack for 'writing for the night' television. That is, writing episodes that can be watched and enjoyed independently from each other at the time of broadcast.
I say this because I re-watched a few recently that I didn't like at all because of the breakneck pacing (presumably designed to appeal to the gnat-like attention speed attributed to most youngsters these days) and found I rather liked them the second time around with other episodes bookending them (Cold War was much more fun seen next to Hide for example).
Are we witnessing UK telly giving itself to the boxset side?