A couple years ago I toyed with eDonkey and the Digital Archive Project as a means to collecting MST3K episodes. Turns out eDonkey is widely and rightly regarded to be a terrible piece of software, and the episodes weren’t well-seeded, so that went nowhere, and I opted to rip a low-quality ShoutCast channel for a couple dozen episodes.
Today, reminded of DAP by this comment at Lifehacker, and aided by a search on Demonoid.com, I was led to this page at The Pirate Bay, with links to torrents for every known available episode, all high-quality and all fairly well-seeded.