Prehistoric Planet, I say as an amateur. But from what little I read about it it's pretty alright apparently, and most of the 'wrong/we're not sure about this bit' things are listed on the wiki afaik.

Of course there's much more scientific depth possible than a TV show, but it's a start towards recreating the common notion of what dinosaurs may have looked like.

feathers, more chonky, appropriate colours...

not just reptile dragon monsters