SG-1 didn't get a "true ending" in either of the DVDs, though.
That's because both DVDs were awful.
Ark of Truth was forced to reintroduce an unrelated overused antagonist, the replicators, just to up the interest of the movie, showing how hopelessly hollow and badly developed the whol Ori arc was.
And Continuum was one half the most boring, slow, tedious hour of SG-1 ever created, and the other half the most hilariously over the top fanwanky nonsense (a bazillion Gould ships attacking Earth!!!1111)
How I miss a time when SG-1 was actually good.