Some great TV shows have made their way onto DVD recently. Titles to check out including:  Agatha Christie's Poirot: The Movie Collection - Set 1 - One of the most serendipitous pieces of casting and writing/producing talent in television history, these films manages to capture both the mystery intricacies as well as the quirk-filled characters that make Christie's writing such an unabashed joy; Two and a Half Men: The Complete Fifth Season - just as good as it ever was, the real star of this particular season is the wildly hilarious CSI crossover episode; and The Universe: The Complete Season Three - a thought-provoking series that offers plenty of information and entertainment that is definitely worth checking out. Other shows recently reviewed include:  Hope & Faith: Season 1, Penn & Teller: B.S!: The Complete Sixth Season and Shin Chan: Season Two, Part Two.  Want more?  Check out all of the TV on DVD reviews in the DVDTalk database.