Discovery dinosaur programs have become very frustrating. The editing seems hyperactive, the animation sequences are repetitive and the science is marginal. Prehistoric, with it's focus on the mega fauna that inhabited the regions of the U.S. that are now major cities, could have been great -- but it's not. The show seems starved for substance. Constantly, the prehistoric animals featured in these shows are compared to military machinery and weaponry: talons and claws are "smart missiles," tails are "crushing tank treads," predatory jaws are "weapons of mass destruction." Discovery's writers seem to forget that these animals were complex and interesting beings that also cared for their nests, slept, ate, drank, migrated, survived and bred. With such a poor showing, my daughter and I will be looking for intelligent and engaging dino shows produced by National Geographic, PBS and BBC from now on.