Re: Season Cliffhangers as Series Finales
Breaking Bad's season 4 ending could have functioned a finale. It wouldn't have been perfect, since there was still a lot of ground uncovered, but the major plotline that had dominated the last couple seasons had been wrapped up.
Also, not quite the same thing, but for a while Farscape's season 4 finale did have to function as the series finale. And what an awful place to leave off.
"In Brightest Day, in Blackest Night, no evil shall escape my sight. Let those who worship evil's might, beware my power: Green Lantern's light!"