This show is so funny and entertaining. I find it amazing to see such a diverse group of different ages, races, ethnicities, and identities all performing funny and interesting tests together. I've definitely watched the whole series over again at least 3 times. I'd pay money to watch it! I wish they had more seasons/ episodes, though.
People are saying that the theories and experiments in the show are crazy and ridiculous and I agree to an extent, but I don't believe the general purpose of the show was to teach or inform, but more to entertain. So, if you are looking for something documentary-like, this might not be your kind of show.
Otherwise, it's a great show to watch for the whole family.
Viewers Warning: Be careful with episodes 1, 3,4 because these episodes might not be for younger kids; ep. 1 slightly sexual, ep. 3 language, ep. 4 racial/ discrimination sensitivity