This Scientist A vs. Scientist B "documentary" plays upon personal contests to hold the audience, since viewers surely will lack the curiosity sufficient to gut through the many ad breaks and aggravating recaps. "Mothra vs. Godzilla", this ain't! Anyone with the slightest knowledge of history will have difficulty enjoying this version of it. The footage is poorly chosen, mostly from History Channel reenactments, I think. There are World War II GI's packing M-16s in the Space Race episode. The filming on "period" sets deserves some credit, but you can see the "museum" signs here and there. There is an 1840s map of the British-American contested Oregon Country is in the background of the 1880s "Austrian" factory office in "Edison vs. Tesla"! Sloppy is a charitable call on this poor effort.