I watched the first three episodes of this "documentary" about titanis, mosasaur and spinosaur. There's little science and lots of fireworks, however not even the fireworks are that spectacular. Apparently they have interviewed some paleontologists but just kept the most exaggerated, flashy assertions.

The other two parts of each episode are the CGI and the mechanic reconstructions. The CGI is poor for the year, very poor indeed. Movements are quite jerky many times, and they reuse the same scenes over and over again. The mechanic reconstruction of each episode is, according to the narrator, the very first time something like it has been done, and after three times of listening to that, you simply stop believing anything else they say.

The narration also sells them as if they're the most spectacular thing ever done related to fossils, and it seems the paleontologists who were lucky to work in them had a great time, but they didn't impress me because of the selling point.

Seen as a whole, the thing looks more like a commercial than a documentary. And I'm not buying it. A documentary should lay the facts, and the viewer could reach one or another conclusion, but this thing just tries to convince you that everything is the most extreme thing ever, and it doesn't hold up to expectations.

In short: not awful, but not worth it either. Watch something else instead.