For those unfamiliar with the show, Trivia no Izumi introduces trivia facts with informative videos. This may not sound like much of a premise, but it's all done in best possible taste. The original late-night run was so popular the show moved to a 55-minute prime time slot, where it lost none of its original charm and ran for a good three years. This torrent contains the complete late-night episodes, introducing 129 facts at various levels of fun (This page has a list.)
The files are from various sources, but except for the first few are in reasonably good quality. You may have problems playing back the first three episodes; I suggest VLC.