Five times, I think. And I'm getting ready to go again - it's my holiday and a lot of stuff is on break show. I do skip a bunch of season 3 episodes. I watch vs The Beard, and then pick up again with Ep. 12, vs The American Hero.
I recommend Season 4. Timothy Dalton was so much fun. My rank of all the seasons by how much I love them: 2, 1, 4, 5 and then 3.