'Previewed' Ep 4.
Spoilers aside, it's a right cracker of an episode, among the best yet. If you 'have access' I cannot think of an epsiode I'd recommend higher. My only reservation is what I saw was 46 minutes, suggesting there will be even more when the episode airs Sunday.
MoF, in all, the episode was so good, the quality so bad, and the cut so short, that I wouldn't be surprised if the leak wasn't stealth marketing by HBO. If I didn't have it already I'd be sorely tempted to sign up by this.