Blerg. 30 Rock will end its seven-season run later this month, meaning that we'll have to say goodbye to Liz Lemon, Jack Donaghy, and the TGS crew... though the show's creator, Tina Fey, isn't going anywhere just yet. In this week's Newsweek (and over at The Daily Beast), you can read my latest feature, " 30 Rock Wraps Up Seven Iconic Seasons," in which I examine the comedic legacy that the show leaves behind. Back in 2006, one of the year’s most highly anticipated new shows was a roman à clef set at a Saturday Night Live–style sketch comedy show. No, it wasn’t Tina Fey’s 30 Rock, but Aaron Sorkin’s Studio 60 on the Sunset Strip, which also aired on NBC and died in 22 episodes. In fact, 30 Rock was very nearly canceled right out of the gate, with nearly half its 8.2 million viewers fleeing by the fourth week. But instead of being axed, 30 Rock became a sleeper hit. The show that gave us Liz Lemon and launched a thousand catchphrases (“Blerg!”) wraps up...