What a surprisingly apt title for Under the Dome this week. “The Endless Thirst” could well describe CBS’s approach to programming, at least as regards this show. What began as a miniseries has turned — thanks to incredibly high ratings in a dull and empty summer broadcast season — into a full-fledged series. CBS announced early on Monday that the show would have a second season next year, with Stephen King penning the first episode. But that doesn’t reallymake things better, and the idea that this year could end without resolution is excruciating. At the same time, “The Endless Thirst” did up the ante and give viewers what we’ve been craving since week one, which is a start. Finally, the Xanax wore off and the citizens of Chester’s Mill have woken up to their reality. Hit the jump for more.