Our look back at the shows that called it a day this year concludes with 30 Rock, the ratings challenged sitcom that somehow managed to survive for 7 seasons.  Way back in 2006, NBC’s fall schedule included 2 shows set behind the scenes at a network sketch comedy show.  Studio 60 On The Sunset Strip starred a post-Friends Matthew Perry and was created by wunderkind Aaron Sorkin.  30 Rock had a post-SNL Tina Fey and Tracey Morgan plus former movie star Alec Baldwin.  If you had to guess which show would last 7 years and which would last 1, you probably would have gotten it wrong.

While never a ratings powerhouse, 30 Rock was a critical darling and continued to be strong in to its final season.  Thursday nights will be less funny without 30 Rock going forward.