Torrenting is probably too hassle-y for the average viewer: Installing Transmission, VLC, perhaps re-encoding to watch on my TV—but I'm pretty techy (ok, a geek) and have been doing this for years. However, if a show is available on iTunes—as South Park is to me now I've set up a US iTunes account (yet another tech hassle I had to overcome…)—I'll click and buy. It's simple, quick, better quality, not to mention legal. It's also cheap.
Preach it, Peter Serafinowicz.