Some of the best selling DVDs right now are TV shows. The demand keeps increasing and DVD Talk continues to review them. Recent TV on DVD reviews include: It's Always Sunny in Philadelphia: Season 3 - Crass, insensitive and funny as hell, this show is a cartoon come to life; The Presidents Collection - a grouping of ten epic biographies of 20th Century American Presidents which are consistently excellent, often superb, and never less than engrossing; and Life: Season One [second review] - a program that contains excellent casting, great writing, and just the right touches to transcend the usual cop show elements. Other shows recently reviewed include:  The Big Bang Theory - The Complete First Season, Last of the Summer Wine: Vintage 1977, and Delicious Proposal, a Korean TV drama.  Want more?  Check out all of the TV on DVD reviews in the DVDTalk database.