Close your windows, lock your doors and clear your schedules. Come this Halloween, you'll have more to fear than trick-or-treaters. AMC has announced that its newest original series, The Walking Dead, will premiere on Halloween night, Sun., Oct. 31 at 10PM | 9C. The Sunday night series will debut with a 90-minute premiere episode. Subsequent episodes will be one-hour long presentations.

If that isn't enough to whet your undead appetites, perhaps footage from the series will: The official four and a half-minute trailer first screened at Comic-Con is now available here online in full-screen HD.

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