Yes, even though Smallville has been off the air since 2011, it's still amazing to think that a series about a teenaged Clark Kent on the road to becoming Superman managed to last 10 seasons. That reason alone is enough to make this list. But what's more is that, through all of the cast and creative personnel changes, the shift in focus from teen-angsty romance mixed with the unrelenting burden of destiny, to some more adult (if not necessarily mature) takes on the same themes, somehow, Tom Welling & Co. made us want to stick with it.
But what kept us tuning in? After about season 4, the reasons for sticking with the show seemed to be less about the present and more about the promise of what may be just around the corner – i.e., special guest stars from the DC Universe roster, including geek-worthy appearances by Smallville versions of The Flash, Aquaman, Cyborg and even Doomsday, as well as the hope that one day we'd see Clark don the big red 'S' and soar over Metropolis (and maybe Smallville for continuity's sake).