19 Things You (Probably) Didn't Know About 30 Rock

30 Rock is over. Done, Kaputt. 

We've cried our tears, rewatched every season twice and sent slightly, okay very, threatening letters to NBC and still, no more episodes. 

So if like us, it's still just too hard to live in a world where Liz Lemon is merely a memory, then enjoy our eye-opening gallery of things you might not know about your favourite show. You can even pretend it still hasn't finished while you read it. 

(Images: All Star/Rex Features)

1.

Donald Glover, aka Childish Gambino, used his own experience growing up to influence the character of Kenneth, He's also from Stone Mountain, Georgia. On a separate note, he also wrote Werewolf Bar Mitzvah, which is quite the achievement.

2.

Jon Hamm originally auditioned to play Jack Donaghy. He ended up playing Liz's love interest Drew in season three.

4.

Judah Friedlander, aka Frank, originally got offered a part in Studio 60 on the Sunset Strip, NBC's similarly themed show at the same time but he was set on 30 Rock. Years later, Studio 60 creator Aaron Sorkin bumped into him and said "Boy, did you make the right decision."

5.

Tina Fey originally pitched the show as being based on around a cable news team but she was implored by the NBC Entertainment president to write about what she knew best.

5.

The show was originally set to be called Rock Center and then The Peacock. Neither was approved by NBC.

6.

The music on 30 Rock is actually composed by Tina Fey's husband Jeff Richmond, who also serves as a producer on the show. He has also had brief appearances on the show as Alfonso Disperioso.

7.

Subhas, who plays a janitor at 30 Rock, is actually a janitor at Silvercup Studios, where the show is filmed.

8.

In real life, Lutz and Sue are married.

9,

While we're on the subject, Sue Galloway, aka Sue, was originally cast as just an extra, in order to give the writers room some female infusion. But she eventually started getting lines and a backstory.

10.

A spoof site was created for Kabletown, the fictional cable company from the show, which you can still see here.

11.

The episode where Tracy discovers that he has diabetes was actually based on Tracy Morgan's real life battle with diabetes.

12.

An actual homeless guy plays the frequently used homeless guy in the show. He is known in New York as Radioman and has also been in Godzilla and Elf, as well as being the subject of a self-titled documentary,

13.

Some of Tina Fey's favourite episodes include 'Tracy Does Conan', 'Apollo Apollo' and 'Rosemary's Baby'.

14.

Jane Krakowski also places 'Apollo Apollo' as one of her all-time favourites.

15.

Jack and Liz are the only two characters to appear in every episode.

16.

Originally, Liz was set to adopt a child that Kenneth fathered by accident at the Beijing Olympics. But that was, ahem, scrapped.

17.

Tina Fey made the writers watch the iCarly series finale as inspiration for the final episode.

18.

Producers pushed to make Liz a single mother but Tina Fey resisted as she feared it would limit the character and what they could do with her.

19.

Both Jack and Kenneth were written directly for Alec Baldwin and Jack McBrayer.