Very annoying music
Maybe it's the Netflix binge-effect, but after 2 episodes the extremely repetitive and amelodic piano music that is played throughout the series becomes ultra annoying (and as you can tell I wasn't a fan of it to begin with)
As AMC has shown: Music is a huge part of a good series
Anyway I suppose that for its time, budget, and the network it was on Jericho was not all bad.