(S10E05) You can probably add Trey Parker and Matt Stone to the list of people who will never be invited on Oprah.

One of my favorite side characters, Towelie, returned for this episode. Broke and in desperate need for money, he decides to write a memoir. Unfortunately, he has trouble selling it because most of the book is about Dorito Corn Chips, and also, he's a towel. Using his special "getting high" powers, he decides to disguise himself as a person in order to get people interested in his book. Oprah makes it a book club selection, but instantly turns on Towelie when she finds out he's been lying.