As a child and as an adult, I remember seeing both season 1 and season 2. To be perfectly honest, I, as well as many other transformers fans was alienated from the season 3 series, due to the killings and replacements of many autobots and decepticons, don't get me wrong, this whole new spaceage era in cybertron, despite how boring that may sound, wasn't bad at all, it was good, since if there's no change in a series, it will eventually get boring anyway. I missed starscream and his naive plots against megatron, ironhide, optimus, etc, but the birth of many new robots wasn't bad at all either. The season three series, unlike the former episodes, doesn't take place on earth, it's primarily based on the planet cybertron about 25 or so years in the future. At first, i thought that they ruined the series, but if you actually see them all, you'll love it like i did in the end. The animation did not have the good quality that season 1 and 2 had though. Another thing that really annoyed me was that galvatron(which was a morphed megatron) seemed strong and powerfull in the movie, just like his former self (megatron) was, but in the series, galvatron was like a spoiled, tempered, immature little brat that simply liked to shoot at his fellow decepticons. The excuse that was used in the series was that his brain was dammaged due to the battle suffered in the movie (completely ridiculous reason to give him an uncharismatic character). Also, Rodimus Prime, the replacement for Optimus prime was immature and is an obvious reason why fans wanted an episode in this season which consisted of optimus prime being revived. Well, beside this criticism, i recommend people to buy this as a good completion for the transformers collection, it's well worth it. Till all are one!