Critics of this show claim that it is impossible to get past the historical inaccuracies it presents. Anybody who whines about the exact details is definitely taking the series too seriously. The Tudors is an excellent series that just so happens to be based on Henry VIII and his many love affairs. The acting is fantastic (especially from Jonathan Rhys Meyers, the reason I started watching) and the story is intriguing. If you take this show for what it is and leave your history book closed, you’ll really enjoy it.
Side note: It is on Showtime, so it is guaranteed to be full of smut.