Millenium's second season finale was pretty damn good. That 10 minute Horses sequence kind of lost it's way, but the ending was stunning. Then Chris Carter returned to actually running the show, decided it had lost it's way, and came back to basically ruin it for the third season, only to partially fix it in an X-files episode. My biggest complaint was the rampant child endagerment in that series, but otherwise I really liked it, once they got away from the 'serial killer of the week' premise.
Season 3 of Babylon 5 is a given. Quantum Leaps series finale was, I thought, a brilliant capstone to a wonderfully underappreciated show. Very touching, and reminiscent of a good Twilight Zone episode, actually.
Trek season finales seemed to lose a lot of punch after The Borg cliffhanger. The most notable thing about that episode with the camping trip for me was the hint of doing something interesting with the Ferengi (and the subsequent loss of same).
Best ending ever, though, goes to Blake's 7. If you've seen it, you know. Wow. It was the first time I sat and just stared at the screen, trying to figure out what had just happened. A friend, who had already seen it just sat next to me on the couch and addressed my speechlessness with a simple "Yeah. I know."
) it would have had much more impact.
