How many episodes are in the first season of 30 Rock? The answer is 21 episodes.
The season aired on NBC from October 11, 2006, through April 26, 2007. NBC initially ordered fewer episodes, then expanded the season to 21 after the series had completed its first six episodes. That order became the season’s canonical episode count.
The season follows Liz Lemon, head writer of the fictional live sketch show TGS, as network executive Jack Donaghy reshapes the program and brings movie star Tracy Jordan into the cast. The season finale, “Hiatus,” is episode 21 and aired on April 26, 2007.
A common mix-up comes from inconsistent summaries of 30 Rock’s episode totals. Some broad series pages have displayed conflicting numbers, and later seasons were affected by production changes, but the dedicated first-season listing identifies 21 episodes. Two installments were also longer “supersized” episodes, which changes their running time—not the episode count.