Thursday night, The Office says goodbye with a one-hour retrospective (NBC, 8 p.m. ET), followed by the one-hour series finale. For Brian Baumgartner (Kevin), the table read was the most emotional day working on that last episode. "We hadn't read it. We were all reading the words and what was going to happen in that moment," he says. "I'd heard a rumor about Kevin, and based on what the rumor was, I wasn't happy. But then when I read it and saw how things worked, I was very happy."