The resignation of Randy Michaels as chief executive officer of Tribune Co. culminates a tumultuous year in the history of the Chicago media company — especially for its flagship news/talk radio station, WGN-AM (720). Here’s how the story unfolded on this blog:

• A rude Pig Virus infects WGN Radio (Nov. 4)
• Now hear this? WGN’s ‘crazy collision’ of bloggers (Nov. 11)
• Time to give thanks for some awfully big turkeys (Nov. 26)
• Angry Kathy & Judy fans get in the holiday spirit (Dec. 17)
• WGN to hosts: Hold your nose over political stinker (Dec. 29)
• WGN Radio rolls out welcome mat for Johnny B. (Jan 18)
• WGN Radio drops Bob Sirott as “Noon Show’ host (Jan. 22)
• If Allison Payne came clean, what’s WGN trying to hide? (Jan. 25)
• All bets are off after belt-tightening at WGN Radio (Jan. 26)
• CBS 2’s ‘Monsters’ fumble Sam Zell interview (Feb. 8)
• They did the crimes. So why is WGN punishing us? (Feb. 22)
• Is it ‘Now’ or never for Bill Leff on WGN’s lineup? (Feb. 23)
• Who’s on first? In radio, it depends on who keeps score (March 1)
• Memo puts WGN news staffers at a loss for words (March 10)
• Trib CEO shoots the messenger — but misses the point (March 12)
• Behind closed doors, angry Tribune CEO confronts staff (March 15)
• It’s criminal: WGN expands ‘Sports Central’ into oblivion (March 26)
• Kaplan leave ‘Sports Central’ with classy farewell (April 6)
• Afternoons adrift as WGN rearranges deck chairs (April 8)
• John Williams enjoying ‘best of both worlds’ — for now (April 24)
• Radio dealmaker takes over Tribune Co. stations (May 4)
• ‘Springer’ veteran teams with Tribune to test talk shows (May 6)
• The real danger of being surrounded by sychophants (May 10)
• WGN program boss: “It’s possible to screw things up’ (May 14)
• Poker party ‘desecrates’ Tribune Tower shrine (June 3)
• WGN bosses prefer to keep their stars in the dark (June 9)
• WGN’s Laski covering Blago? It’s a criminal offense (June 10)
• Who’d want to join WGN’s big happy family anyway? (June 15)
• Kathy & Judy fight back: ‘We did not lie to our listeners’ (June 24)
• WGN pulls the plug on 10-year veteran Steve Cochran (June 25)
• Spike O’Dell “heartbroken” over the damage at WGN (June 28)
• Cochran goes off on WGN: “Worst kind of management’ (July 1)
• Don’t look now, but WGN is shuffling the deck — again (July 14)
• The education of Greg Jarrett: Chicago’s lost cause (Aug. 2)
• WGN listeners leave ‘new talent hanging out to dry’ (Sept. 3)
• The trials and tribulations of Randy Michaels & Co. (Sept. 27)
• New York Times exposes Tribune Co. ‘bankrupt culture’ (Oct. 6)
• Time for Tribune to clear the air on foul management (Oct. 13)
• Ex-Tribune editor recalls ‘pressure’ from Sam Zell (Oct. 14)
• Lee Abrams goes down (Oct. 15)
• Editor calls damage to Tribune reputation ‘shameful’ (Oct. 18)
• Read all about it: The party’s over, Randy (Oct. 19)
• Hell no, he won’t go: Randy says he’s ‘still working’ (Oct.19)
• Over and out: Tribune Co. cancels Randy Michaels (Oct. 22)