The show can get a little too engrossed with the pop culture stuff, and episodes that centre around it like "Dead Celebrities" or "Britney Spears New Look" can seem too forced and while they have a couple good laughs, arn't that good overall. I find the best episodes are ones almost entirely about the show itself ("Fun times with weapons", "Awesom-o", "Butters Bottom Bitch".) However there are some great episodes created from an initial and recent popular public topic, such as "Fatbeard" from somalian pirates, or the "Go God Go" episodes from the Wii fanaticism. Its great to have pop culture references, but when it becomes a case of "Heres what South Park thinks of (Insert recent headline)" it gets kind of boring.