Rewatch of Falling Skies (I actually stopped somewhere during the fourth season and had to start all over), now at the start of Season 3. It's actually much better than many of the new shows today, including terrible ones like Star Trek: Discovery and Picard, but not as good as Mandalorian, which essentially mines from old Westerns and samurai shows. It's similar to Cobra Kai and Stranger Things, where quality deteriorates in latter seasons due to problems with convoluted plots, issues with transitions, etc.