As I'm sure most you know, Amazon Prime has all Stargate shows/movies except for the original movie and the refinished "Children of the Gods" available for free with Prime membership. Prime is well worth it, I dropped cable thanks to my Ruko and Amazon.
Starting last spring I watched all episodes of SG-1 and SGA on Amazon completing them in late December. Last weekend, after finding this site, I had an urge to start back at the beginning. Watching Children of the Gods (episode 1 not re-mastered version) I noticed it was different then 9 months ago.
I'm assuming Amazon has now updated to the DVD HD quality. Colours were brighter, the wormhole shuts down then re-opens in the opening scene, when the goa'uld checks out the Air Force woman it looks like in later seasons with the wings and stuff not just a little worm with teeth. I noticed some other small things too.