Question: How many episodes were ordere for the first season of 30 Rock?
About the article "30 Rock", section "Conception".

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"Rock Bottom" was written by Paul Tibbitt, Ennio Torresan, and David Fain, with Tom Yasumi serving as animation director.
Tibbitt and Torresan also worked as storyboard directors.
The episode originally aired on Nickelodeon in the United States on March 15, 2000, with a TV-Y7 parental rating.
Series head writer of the first season Merriwether Williams said the episode's story is "so simple."
She remarked "To me, it's one of the best episodes.
It just stayed with one idea."
The episode was about "how he keeps missing the bus and how that makes him feel."
Williams said the episode was "so small that you could explore gags and opportunities for gags."
The episode was an example of "a good outline" in the series where the storyboards and humor were done easily.
Williams said "it was great for the board guys."
She added "In many ways, my job was to create situations where the board guys could be funny, to create a situation that could be funny, and let them go for the actual, specific jokes.
""Rock Bottom" was released on the DVD compilation called "SpongeBob SquarePants: The Complete 1st Season" DVD on October 28, 2003.
On September 22, 2009, the episode was released on the "SpongeBob SquarePants: The First 100 Episodes" DVD, alongside all the episodes of seasons one through five. 
The first season of the television comedy series "30 Rock" originally aired between October 11, 2006 and April 26, 2007 on NBC in the United States.
The season was produced by Broadway Video, Little Stranger and NBC Universal, and the executive producers were series creator Tina Fey, Lorne Michaels, Joann Alfano, Marci Klein, and David Miner.
The series focuses on "TGS with Tracy Jordan", a fictional sketch comedy series, and its head writer Liz Lemon, portrayed by Fey, as she juggles her job and her personal life.
The season consisted of 21 episodes; 19 episodes were approximately 22 minutes long, and the other two episodes were approximately 26 minutes long due to NBC "supersizing" those episodes.
The season moved timeslots three times during its run.
The first four episodes aired on Wednesdays at 8:00 pm, the next thirteen episodes aired on Thursdays at 9:30 pm, and the final four episodes aired on Thursdays at 9:00 pm.
The season received generally favorable reviews, and was nominated for ten Emmy Awards: six Primetime Emmy Awards and four Creative Arts Emmy Awards.
Despite critical success, the series struggled in the ratings, and the first season averaged 5.8 million viewers for all 21 episodes.
The "30 Rock" first season DVD box set was released on September 4, 2007 in Region 1 format, and was released on March 17, 2008 in Region 2 format. 
Trim worked as director of photography for: 1 episode of "30 Rock".
4 episodes of "Cavemen".
28 episodes of "Weeds".
25 episodes of "Parks and Recreation".
He has worked in some producer capacity for: 36 episodes of "Weeds".
The entire first season of "Orange Is the New Black" (13 episodes).
Trim has directed: 1 episode of "Man Up!.
3 episodes of "Parks and Recreation".
16 episodes of "Weeds".
5 episodes of "Orange Is the New Black".
He has also worked in various other capacities, including cinematography.
His initial interested in entertainment was in lighting. 
How to Rock is an American sitcom that ran on Nickelodeon from February 4 to December 8, 2012.
It stars Cymphonique Miller as Kacey Simon.
The series is based on the 2011 book "How to Rock Braces and Glasses" by Meg Haston published by Little, Brown Books For Young Readers and Alloy Entertainment.
The series was officially green-lit on May 23, 2011 with a 20-episode production order, later increased to 26.
Two of the ordered episodes were merged into a special episode so 25 episodes actually aired.</ref> The series began production in August 2011.
It is the first television sitcom to be produced by Alloy Entertainment.
The first promo aired with "Merry Christmas, Drake & Josh" on December 10, 2011.
It was confirmed by the series showrunner David M. Israel on August 26, 2012 that "How to Rock" would not be returning for a second season. 
20 episodes were produced for this season.
The 10 episodes listed below were broadcast as season 12, and the other 10 were broadcast as season 13.
This resulted all of season 13 episodes airing in several countries such as Canada and United Kingdom for many months prior the U.S. broadcast.