Question: When did 30 Rock premiere its fifth season?
About the article "30 Rock", section "Season 5".

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The fifth season premiere, "The Fabian Strategy", drew 5.9 million viewers, an increase from the previous episode, "I Do Do" (5.5 million), but a decrease on the fourth season premiere, "Season 4", which had drawn an audience of 6.4 million.
The fourth episode of the season, "Live Show", aired live and demonstrated a turnaround, attracting a season high of 6.7 million viewers.
This figure was the highest overall for NBC in the 8:30 p.m. Thursday timeslot for non-sports events since December 2009.
Following NBC's decision to move "30 Rock" to the later time of 10:00 p.m. for the second half of the season, ratings declined to beneath five million viewers per week, starting with the episode "Operation Righteous Cowboy Lightning".
The penultimate episode of the season, "Everything Sunny All the Time Always" became the new lowest-rated episode of the series, with less than four million viewers tuned in.
Previously, the fourth season episode "Lee Marvin vs. Derek Jeter" had been the lowest-rated, with four million.
The season finale, "Respawn", attracted 4.2 million viewers, and overall, the season averaged 5.3 million viewers, ranking one hundred and sixth for the year, according to Nielsen Media Research.
"30 Rock" season five was found to have added an average of 30 percent more viewers in the 18–49 demographic, when DVR plus seven day viewers were factored in.
This is a measurement of the viewers who recorded the series and viewed it within seven days of broadcast.
In all, the season added 1.4 million (28 percent) more total viewers when seven day results were factored in. 
A 10-episode fifth season will premiere in 2015. 
According to the Nielsen ratings system, "Season 4" was watched by 6.312 million households in its original American broadcast, and earned a 3.0 rating/8 share in the 18–49 demographic.
This means that it was seen by 3.0 percent of all 18- to 49-year-olds, and 8 percent of all 18- to 49-year-olds watching television at the time of the broadcast.
This season premiere episode was down by 2.4 million from the previous season's premiere which had 8.7 million viewers and was at the time the highest-rated episode of the series.
"Variety" and ABC noted that the 2009 Major League Baseball playoffs were a "competitive factor" for ratings on the episode's original air date.
"30 Rock"'s third season, by comparison, did not premiere until October 30, 2008, a day after the 2008 World Series had ended.IGN contributor Robert Canning reviewed the episode, giving it high marks saying it "proves yet again that "30 Rock" is worthy of the Best Comedy Emmy" and scored the episode a 9.2 out of 10.
Sean Gandert of "Paste" magazine also reviewed "Season 4", saying it did "little to disappoint and in fact starts the show off on much stronger footing than the first couple episodes of season 3."
Gandert said the episode "doesn't have quite as many truly classic moments as the show's peaks in seasons one and two" but that "it also never really hits a sour note."
Bob Sassone of AOL's TV Squad enjoyed the economic crisis, cutbacks, and corporate bonuses theme in the episode, explaining that one of the reasons he loves the show "is because it can take something that's in the news and make it the plot of an episode without it feeling weird or forced."
Sassone wrote that despite "Season 4" not being the best episode of "30 Rock" "it was still very good."
"TV Guide"s Michael Anthony commented that Steve Buscemi is "so weird and yet does it in such an endearing way."
Mary McNamara for the "Los Angeles Times" called Kenneth's strike one of the more hilarious strikes in history.
"Entertainment Weekly"s Margaret Lyons noted that this episode of "30 Rock" had strong moments "and was a solid start to the new season".
David Zurawik, a contributor for "The Baltimore Sun", liked the episode and enjoyed Buscemi's appearance, noting he "brings just the right mix of sleaze and smiles to the role."
The "Chicago Sun-Times" Paige Wiser noted, "...tonight's season premiere, the hype is warranted: "30 Rock" is in all its glory."
Kevin Aeh of "Time Out" magazine wrote that the best part from "Season 4" was Tracy's storyline after being told to reconnect with his roots.
Not all reviews were positive.
David Hinckley of the "New York Daily News" reported that the season premiere episode "never quite its rhythm."
Linda Stasi of the "New York Post" said that "Season 4" had "some good laughs here, but there's also the threat that "30 Rock" could easily turn into that thing the writers relentlessly make fun of – TV shows and stars that are too smug, too smart and too out-of-touch for their own good."
"The Kansas City Star"s Aaron Barnhart deemed it as "one of the weakest "30 Rock"s" he has ever seen and that he found the episode boring. 
The first season of "The Hills" maintained a steady viewership of about two million viewers for each weekly episode.
During the third season, the series achieved its most-viewed episode, "Paris Changes Everything", on March 17, 2008; it had attracted 4.8 million viewers in its original airing.
However, the fourth season premiere experienced a 25-percent ratings decline, attracting 2.6 million viewers, compared to the 3.8 million viewers of the third season finale.
The second half of the fifth season, also Cavallari's first episode as the lead, premiered to 2.1 million viewers, suffering a 30-percent drop from the premiere of the first half.
The series finale in July 2010 aired to three million viewers, becoming the peak viewership of the season. 
The show's first season consists of 20 11-minute episodes, the first of which premiered on the Adult Swim Video on August 4, 2006 and on Adult Swim proper the following Sunday.
"Metalocalypse" was renewed for a second season consisting of 20 episodes which began airing September 23, 2007, two days before the CD release of "The Dethalbum".
An updated version of the Deththeme was featured in the second season as well.
The "Metalocalypse" premiere was the #1 rated show in its time slot among males aged 18–34, and earned the network's best premiere delivery and ratings in 2006.
Among the top ad-supported basic cable programs of the week, "Metalocalypse" ranked #12 among men 18-34 and #6 among men 18-24.
The series premiere ranked #30 for the week among adults 18-34.
At San Diego Comic Con 2008, Tommy Blacha confirmed that the show would be renewed for a third season which premiered on November 8, 2009.
The episodes of season three are 21 minutes long (30 minutes including commercials).
The fourth season returned to the original 11 minute run-time.
Season four premiered April 29, 2012, and consisted of 12 episodes.
Actor Mark Hamill has confirmed the fifth season of the show is currently in production.
Brendon Small later denied this, however, stating that it had not reached production yet.
On May 10, 2013, Brendon Small and Adult Swim announced that a Metalocalypse one hour rock opera special, entitled "", was in the works.
The special aired on October 27, 2013.