I'm going to tell you a story about a time when the world was ruled by monster creatures. They were the most spectacular, terrifying, and successful life forms ever, and they ruled the planet for 150 million years... - Walter Cronkite
Back in the early nineties, A&E presented a four-part documentary called Dinosaur! hosted by Walter Cronkite. The first two episodes are available via YouTube user Troodon311, and well worth your time. Here's the first ten minute installment of the first, "A Tale of a Tooth." The four remaining parts, as well as the second episode, are available here. Scrolling through, I'm finding tons of great stuff, including Dino-Riders, Ben Linus, Lloyd Bridges, and Dennis the Menace: Dinosaur Hunter. Best YouTube channel ever.
More chilling than the puppet battle between Megalosaurus and Iguanodon is Bob Bakker's stonewashed vest.