Why we'll never see another show like 'Parks and Recreation' again

"Parks and Recreation" ends for good on NBC Tuesday night. It's unfortunate for any fan of the sunny comedy, which seamlessly blended hilarity with deft political commentary.Adding to the sadness? The fact that when you really think about it, we're never going to see a show like "Parks and Recreation" again. Because a show just like it won't be given the chance to survive.