Commentary also has a long tradition of being fair use. People sold newspapers with reviews in them and they were absolutely able to quote from the sources they

Commentary also has a long tradition of being fair use. People sold newspapers with reviews in them and they were absolutely able to quote from the sources they were reviewing. Quoting 30 seconds of a half-hour show as part of a review seems to fit comfortably in the tradition of fair use, whether it's a commercial use or not.