I watched Stargate SG-1 pretty religiously for the first two seasons, dropped off in S3 but caught most of the episodes including the awesome season finale, "Nemesis," and the S4 Premiere, "Small Victories". I also caught "Watergate", "Upgrades" and another episode, "Beneath The Surface" (with Rene Auberjonois). As I have been busy watching some other shows and.....well....busy in genral, I missed out on the rest of SG-1's run and wanted to know what other seasons/episodes post-S3 are recommended viewing/download/purchase. I've been paying attention to some of the threads/comments here so I know a *little* about what has happened with the characters but I've been wanting to start watching the series again. Also, it is more worth renting or buying the rest of the series? Is there a "jump the shark" season/moment for the series? Any advice or suggestions would be greatly appreciated. Thanks!