I saw the movie first and I thought it was brilliance, before the TV series came out. When SG-1 started I loved it too but I wasn't able to watch it religiously so I missed a bunch of episodes which turned out to be kinda important. (e.g. "Who the eff is Jolinar? And who the eff is Cassandra?") I've tried not to miss an episode since season 4 of SG-1, though.
Just because I like Star Trek doesn't mean it has to be the only science fiction show I ever watch or like. I'm a Trekkie and a Gater, a Niner and a Lurker, a Dwarfer and a Whovian and a Browncoat. And many others besides.