Fun piece from Jeremy Hubbard and producer Kinga Janik currently scheduled for tonight about memorable TV finales in advance of Sunday night's "Lost" sign-off, a television event already the stuff of lore. All that anticipation: Will it live up to the hype and satisfy a famously loyal fan base? Or will viewers be left deflated or in search of more? "World News" anchor Diane Sawyer will talk with show producers Damon Lindelof and Carlton Cuse this week — and is fielding questions online about the series finale. Of course, at the beginning of this sixth and final season, John Donvan brought us the behind-the-scenes profile embedded below that shed some light on the shows secretive ways. Click HERE for a slideshow that runs through some of the biggest finales — a walk down TV memory lane already generating some nostalgic feedback on our Facebook page. What's your all-time favorite TV finale? UPDATE: Here is the segment, "Television Finales: That's All, Folks."