Most, if not all of SyFy's shows were/are shot up in Canada including all of the Stargates and I think Eureka was and Warehouse 13 might be too. X-Files eventually moved up there by the end IIRC and I suspect that Fringe was filmed in Canada too with just a small crew to film some location shots in Boston & surrounding areas.
Eureka definitely was, a friend of mine was a character in that show (never watched it myself, who did Neil Grayston play?)
You have X-Files backwards actually, they shot up here until the very end and then moved south IIRC. The NDP government taxed the hell out of them and drove them out.
Sliders and The Outer Limits all shot in Vancouver. I got to work on both of those for a bit.