I usually wait till i have watched either the entire show or at least a complete season to rate a show but this one among few others i know will not be disappointed by by the end. A clever premise to put the humans back to the stone age and is a light hearted, very funny and exciting show with each episode leaving you with a big smile on your face. Whether or not you are a science fan you will still appreciate and find something to like in this show. And for me it was like revisiting how it was like to feel getting introduced to all our history our discoveries and inventions via books for the first time in school. Even the not so great episodes at least give me a good laugh. Only negative i can think of is that it kinda drags and becomes very slow in the middle with few not so interesting arcs but I'm excited moving towards the end to see where it lands... Hopefully for the better