I just looked it up. I think I have always conflated it in my mind with Jericho and hadn't realized it was a separate show. JMS eh?
Both good post-apocalyptic shows, but very different executions.
One fun thing about Jeremiah is that is also uses the Cheyenne Mountain Complex as a base, but on the one occasion when they recognizably use the SGC sets, it's representing a different
I think, but I'm not sure, that Jeremiah's sets might have been used as the Kelownan gate room in their later appearances.
The only other time I've really noticed set re-use was in a season 8 episode of SG1 when a certain metaphysical realm appears remarkably similar to Der Waffle House from Dead Like Me
...and Daniel orders waffles.