In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Q: Sources tell Mediaite Keith Olbermann and MSNBC were headed for a breakup long before Comcast’s rise to power, but clearly something set the divorce into motion quickly today, with network promos set to run touting Olbermann’s role in MSNBC’s coverage of next week’s State of the Union address–and, notably, a Keith Olbermann promo running on MSNBC in the hour after the host signed off and left the network. 
  
 MSNBC executives have long planned for the day the network’s star might be sent packing, and the rise of Rachel Maddow at MSNBC–along with the grooming of Lawrence O’Donnell as a potential replacement for Olbermann–appears to have hastened the host’s departure. 
  
  
  
 While Olbermann and his iconic Countdown have been immensely important in the resurgence of MSNBC, Olbermann’s friction with management has been a sticking point. At many points–including the recent suspension over political contributions–tensions rose so high as to lead to serious discussions inside MSNBC about firing their star. 
  
 With Maddow enjoying both immense popularity inside MSNBC and very strong ratings for her Rachel Maddow Show, Olbermann’s invincibility as the heart and soul of MSNBC’s brand became softer. In recent weeks, sources tell Mediaite there have been meetings on the topic of Keith Olbermann and his future at the network. Did Comcast–as many Countdown viewers seem to suspect–order Olbermann out? It appears that the end of the Olbermann era at MSNBC was not “ordered” by Comcast, nor was it a move to tone down the network’s politics. Instead, sources inside the network say it came down to the more mundane world of office politics–Olbermann was a difficult employee, who clashed with bosses, colleagues and underlings alike, and with the Comcast-related departure of Jeff Zucker, and the rise of Maddow and O’Donnell, the landscape shifted, making an Olbermann exit suddenly seem well-timed. 
  
 The blunt, brief statement of Olbermann’s final day, compared to the long, lush programming memo that makes no mention of Olbermann suggests that while the timing may not have been set, the foundation had been laid for today’s move. 
  
 Update: Brian Stelter reports the following statement from Comcast: 
  
 “Comcast has not closed the transaction for NBCU and has no operational control at any of its properties including MSNBC. We pledged from the day the deal was announced that we would not interfere with NBCU’s news operations. We have not & we will not.” 
  
 Watch Olbermann’s Sign-off below: 
  
 Have a tip we should know? tips@mediaite.com ||||| Keith Olbermann took an unexpected bow from MSNBC on Friday, announcing on air in the last 10 minutes of his show that it would be his final episode of “Countdown.” 
  
 The departure was a stealth move, MSNBC insiders told POLITICO, with many top executives and on-air personalities kept out of the loop as the decision was made. It came, one insider said, “Out of the … blue!” 
  
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 reset VIDEO: Olbermann's sign off POLITICO 44 
  
 “This will be the last edition of ‘Countdown’,” Olbermann said at about 8:50 as he led into his final commercial break. “I will explain that, next.” 
  
 Neither MSNBC nor Olbermann offered a reason for the departure, but several sources close to the situation said its roots lay in Olbermann’s defiant reaction to being suspended after POLITICO discovered that he had donated to Democratic candidates without telling his bosses. 
  
 Although Olbermann’s political leanings were quite clear, the move violated NBC policy, and Olbermann’s response angered NBC News President Steve Capus in particular, according to former MSNBC anchor David Shuster. 
  
 “It’s no secret that Steve was particularly upset – justifiably so – with how he handled the suspension,” he said in an interview with Anderson Cooper. 
  
 On air, Olbermann hinted that he had just learned of the end of his show Friday, and suggested his departure was not voluntary. “I think the same fantasy popped into the head of everybody in my business who has ever been told what I have been told: this will be the last edition of your show,” he said. 
  
 “You go to the scene from the movie ‘Network,’ complete with the pajamas and the raincoat, and go off on a verbal journey of unutterable vision and you insist upon Peter Finch’s gutteral resonance and you will the viewer to go to the window, open it, stick out his head and yell,” he continued. “You know the rest. In the mundane world of television goodbyes, reality is laughably uncooperative.” 
  
 “Good night and good luck,” he said, quoting Edward R. Murrow, as he signed off for a final time. 
  
 Olbermann had two years left on the four-year, $30 million contract he signed in 2008. Insiders said discussions about his departure had been going on for some time. 
  
 The end of Olbermann’s contract coincided with the departure of NBC Universal chief executive Jeff Zucker, three days after Comcast’s takeover of a majority share in the company was approved by the U.S. government. 
  
 Cooper opened his CNN show with the story, noting that the move was so sudden that some at MSNBC didn’t appear to get the memo as promos for this show were still airing after his final signoff. 
  
 He said his sources blamed the fallout from the merger and Zucker’s departure. Zucker was widely viewed as Olbermann’s “protector,” as Cooper put it. 
  
 But MSNBC rejected this reading. 
  
 “Comcast had nothing to do with this decision,” said MSNBC spokesman Jeremy Gaines. “They were informed this week following regulatory approval.” 
  
 Comcast distanced itself from any notion that it had something to do with the decision, releasing a midnight statement saying it had not yet closed its transaction with NBC Universal and so does not yet have operational control. 
  
 “We pledged from the day the deal was announced that we would not interfere with NBCU’s news operations. We have not and we will not.” ||||| Cable host Keith Olbermann and news channel MSNBC abruptly parted ways on Friday night, as the network announced it had agreed to end his contract and the last installment of his show would air that evening. 
  
 The surprise announcement strips MSNBC of its most-watched evening anchor after an increasingly tempestuous relationship, coming less than three months after the network briefly suspended the fiery host. 
  
 Enlarge Image Close MSNBC A shot from Keith Olbermann's last episode on Friday. 
  
 "MSNBC thanks Keith for his integral role in MSNBC's success and we wish him well in his future endeavors," the network said in an emailed statement just before the end of Mr. Olbermann's Friday program. 
  
 MSNBC and Mr. Olbermann have been discussing parting ways for some time, according to a person familiar with the matter. That person said they ultimately came to a financial agreement to end his contract two years early. The host signed a four-year deal worth $30 million in 2008. 
  
 Neither side offered an explanation for their split. On the air, Mr. Olbermann said it would be his last show, and thanked viewers. 
  
 The quick change Friday set off a game of musical chairs, as MSNBC moved to fill the hole "Countdown with Keith Olbermann" will leave behind. The network said its 10 p.m. host Lawrence O'Donnell would move into Mr. Olbermann's slot 8 p.m. slot beginning on Monday. 
  
 Meanwhile radio host Ed Schultz, who has hosted a 6 p.m. show on MSNBC since 2009, will take over Mr. O'Donnell's 10 p.m. time slot. 
  
 Executives have said tensions between Mr. Olbermann and the network have been running high since their spat in November, when the host was suspended for making three donations to Democratic candidates without seeking approval beforehand. One of them was U.S. Rep. Gabrielle Giffords, an Arizona Democrat who faced a tough re-election battle at the time, and narrowly survived an alleged assassination attempt earlier this month. 
  
 Mr. Olbermann missed two broadcasts during his suspension. MSNBC asked Mr. Olbermann to make a public apology for running afoul of its ethics rules before reinstating him, according to another person familiar with the matter. But Mr. Olbermann resisted so long as MSNBC kept him suspended, the person said. 
  
 After MSNBC lifted its suspension, Mr. Olbermann released a statement apologizing to viewers. But at least some senior executives and others at the network remained angry over Mr. Olbermann's behavior, before and during the affair, a person familiar with their thinking said at the time. 
  
 Mr. Olbermann made his debut on "Countdown" in 2003 and quickly became the face of MSNBC's more liberal tilt in its evening hours. Along with fellow host Rachel Maddow, he helped catapult MSNBC ahead of Time Warner Inc.'s CNN in the size of its primetime audience. 
  
 Mr. Olbermann averaged 1 million viewers in 2010 in the 8 p.m. hour, according to Nielsen Co. figures from MSNBC, a distant second to Fox News's Bill O'Reilly, but nearly double what CNN averaged against him in the hour. (News Corp. owns both Fox News and the Wall Street Journal.) 
  
 Mr. Olbermann's exit comes on the eve of Comcast Corp.'s takeover of network parent NBC Universal, in a deal that received regulatory approval in Washington earlier this week. 
  
 An MSNBC spokesman said that Comcast was informed of the decision, but not involved in making it. 
  
 A Comcast spokeswoman said in an emailed statement that the cable giant currently has "no operational control" at MSNBC, adding, "We pledged from the day the deal was announced that we would not interfere with NBC Universal's news operations. We have not and we will not." 
  
 Write to Sam Schechner at sam.schechner@wsj.com ||||| Cable news channel MSNBC ended its turbulent relationship with its most-popular anchor, Keith Olbermann , with a terse statement saying that Friday night's show was his last.In a six-minute farewell sign-off at the end of " Countdown with Keith Olbermann ," the forceful liberal commentator didn't volunteer a reason for his abrupt departure from the channel that became an ideological counterbalance to the rival Fox News Channel The only hint Olbermann offered for his exit was an admission that over the last couple of years there were "many occasions" when the noise and heat surrounding the show "was just too much for me." But, he added, it was a supportive, unwearying audience that "required that I keep going."Although Olbermann's last broadcast came without warning, tension between the network and the former sports broadcaster — early in his career he appeared on KTLA -TV and KCBS-TV in Los Angeles — had been building for some time. Several weeks ago the two quietly began negotiating a severance, according to two people with knowledge of the matter.Olbermann appeared to allude to some of the workplace strife on Friday, thanking his staff "who fought with and for me."The frayed relations snapped in November after MSNBC President Phil Griffin suspended Olbermann when it was revealed that the anchor had made political donations to three Democratic congressional candidates, including $2,400 to Rep. Gabrielle Giffords of Arizona. The contributions violated NBC News' ethics policy for news staff members, who are supposed to be impartial.The suspension, which Olbermann protested, didn't last long — he was off the air for only two shows.MSNBC on Friday was even more tight-lipped than Olbermann about why he was leaving, confirming in a three-sentence statement that his last show was Friday and thanking him for "his integral role in MSNBC's success."The network said "The Last Word" with Lawrence O'Donnell would replace "Countdown" at 8 p.m. Rachel Maddow keeps her current 9 p.m. time slot and "The Ed Show" with Ed Schultz moves into O'Donnell's previous slot at 10 p.m.Olbermann has hosted "Countdown" since 2003. It was the most-watched show in MSNBC's prime time lineup and drew 1.1 million viewers Thursday night, according to Nielsen Co."I was supposed to fill in for the late Jerry Nachman for exactly three days," Olbermann said. "Forty-nine days later there was a four-year contract for me to return to this nightly 8 p.m. time slot which I had fled four years earlier. The show gradually established its position as anti-establishment."Olbermann, however, never quite matched the ratings of his longtime nemesis Bill O'Reilly , whose show, "The O'Reilly Factor," on Fox News often beats "Countdown" by a 3-to-1 margin.People close to the situation said the timing of Olbermann's departure was coincidental to next week's takeover of NBC Universal by Philadelphia -based Comcast Corp. Comcast released a statement saying it had not, and would not, "interfere with NBC Universal's news operations." However, his leaving removes one potential problem for Comcast, which might not have been comfortable with his confrontational politics.Olbermann signed off his show Friday night in trademark fashion by tossing his papers at the screen. He did not indicate where he might be headed, although a person familiar with his exit agreement said it prevents him from turning up on a competing channel for about a year.Late Friday, the founder and chief executive of the liberal-leaning Media Matters for America, David Brock, saluted Olbermann, saying "for nearly eight years, 'Countdown with Keith Olbermann' led the charge against conservative misinformation in prime time." |||||
A: 
Neither side is talking about Keith Olbermann's surprise departure from MSNBC, but the gist from a slew of reports (based on anonymous insiders) is that the host's long-strained relations with management simply never recovered from his suspension over political donations. (See Politico and the Wall Street Journal for more.) Quiet talks were reportedly under way for weeks to end his contract early. The move comes on the eve of Comcast's takeover of NBC, and while many Olbermann fans think the cable giant forced him out, Mediaite and the Los Angeles Times don't think the company had a say in the move. Comcast honchos are no doubt thrilled, however, notes the LAT. Official Comcast response: "We pledged from the day the deal was announced that we would not interfere with NBC Universal's news operations. We have not and we will not." Show shuffle: Lawrence O'Donnell to 8pm, Ed Schultz to 10, and Cenk Uygur (of the web's Young Turks show) gets a show at 6. Rachel Maddow remains at 9. Surprise, surprise: It had happened so abruptly, MSNBC was still running promos for his show after Olbermann's signoff.