We had watched Stargate SG-1 start to finish on Prime. Then we watched Stargate Atlantis on Prime. Love them both so I got the DVD for SG-1.
I've watched SG-1 again up to season on 8. Now i've found a spreadsheet online that shows air-dates for SG-1 and Atlantis so that I can now watch the two in synced timeline. I ordered Atlantis DvDs but I have to wait to Xmas to have them so I'm using Prime for Atlantis (man I hate the ads and how the heck can I kill Closed Caption? The TV setting is off). But It will be interesting to switch back and forth.
Looking forward to being able to open those Atlantis DVDs.
Stargate Universe? We watched it. Not sure I would want to watch that again.