Recently I've watched them all on blu ray extended edition which is the real way to watch. I typically eat a whole pie of pizza and drink two bottles of wine during the 12 hr marathon. Other than the og star wars movies, I don't marathon watch any other series.
I think they're better than the books, but I might be in the minority on that one. In total I've seen them through in one sitting probably 15 or 16 times. It's just fun to pick a day and devote it to middle earth.
lying on the couch, my blouse is open, i'm watching LOTR, i'm eating a tub of Häagen-Dazs, i go to the bathroom, and all the farts i've been holding in for the week, just let them out. i don't care.