Truth be told, the second and third seasons of the Brit version are basically them doing the same thing with diminishing returns. But that first season is fantastic and the subsequent ones still pretty good.
The way the conflicts change keep them interesting. Yeah second season is FU doing to the king what he’d already done to the PM, but boy does he do it to the king. And the way the wife comes into play on the third season, ho boy. 2 of the most “holy crap!” endings I’ve ever seen are in that show, seasons 1 and 3 are right there with season 1 of the Sopranos, I advice not watching them late at night so your yells of surprise don’t wake anybody.