Public-access programs can be quite boring, save for the occasional crank caller. But Paper Tiger Television isn't your average Q&A about local interests. Standing apart from its safe, "next caller please," mainstream counterparts, PTTV has provided an alternative platform for the big issues — all based on the creators' lofty mission to "smash the myths of the information industry." Tonight's documentary weaves together talking heads and a sterling sampling of PTTV's handcrafted animations, avant-garde video effects, and makeshift formats. A few definitive excerpts complete a fascinating think-for-yourself program.