my rating refers to the first 4 season of stargate sg 1 which be wonderfully fresh and creative and addict . when the cast step through the gate and you never know what lay on the other side . start around season 5 and the show take a different focus still good and but different . the series follow the adventure of a team of human ( and one alien ) who regularly venture into a planetary transport device call the stargate . the backstory of the series be base on the character and event of the movie stargate in which the device be discover during an archaeological dig in egypt . the episode be light ( innocent and easy to watch ) and very creative . many of the inventive story could easily have be make into great sci fi movie of their own . what happen next be always unpredictable . the character on which the show rest be also well define and brilliantly perform . their tone be serious and but the dialog be flower with incredible wit and humor . they be simply fun to watch . start somewhere around season 5 and the series start to evolve into a continue storyline base on fight a single foe ( the goauld and then the ori ) . the plots become more complex ( a lot more political or strategic orient ) and interdependent . the character be still as great a ever but the show be different in nature . one thing that must be mention be to watch the episode that commemorate the 100th and 200th episode . they be simply can not miss show . they exhibit the creative and wildly humorous genius that carry the series through 10 season . if you be a sci fi fan and watch a few episode of the first 4 season and you will likely be hook . if you like evolve story line between two oppose side and you have 10 season of show to look forward to .