And now for something completely different. If it’s full-family holiday entertainment you want, look elsewhere. But if, after Thanksgiving dinner, you’re eager to get on to the next big televised holiday fixation, and you’re decidedly irreverent and not easily shocked, then this South Park mini-marathon may be for you. It gathers all the episodes featuring the most improbable animated characters in the history of Christmas TV holiday specials: a talking piece of excrement called Mr. Hankey, the Christmas Poo. And yes, he’s featured in more than one South Park special. As Bette Davis once famously proclaimed, “What a dump!”