It’s time once again to enter that dimension not only of sight and sound, but of mind, as Syfy presents its annual favorite — the Twilight Zone New Years marathon. The Twilight Zone New Years Marathon 2012 begins at 8am ET on Dec. 31 and continues to 5am on Jan. 2 — offering 45 hours of classic episodes from Rod Serling’s legendary series. Included are all the memorable ones you love — such as “To Serve Man,” “Time Enough at Last” (pictured below), “Nightmare at 20,000 Feet” and more — as well as many you may have never seen before, or at least not often.

RELATED: SYFY TWILIGHT ZONE NEW YEAR’S EVE MARATHON 2013 EPISODE GUIDE

The Twilight Zone New Years Marathon 2012 airs Dec. 31 at 8am ET to Jan. 2 at 5am ET on Syfy.

Here is a listing of the episodes being shown during Syfy’s Twilight Zone New Years Marathon 2012. All Times are Eastern.

Which ones are you looking forward to?

Dec. 31, 2012

8am: “The Fever”

8:30am: “Perchance to Dream”

9am: “One for the Angels”

9:30am: “The Prime Movers”

10am: “Death’s-Head Revisited”

10:30am: “What You Need”

11am: “The Jeopardy Room”

11:30am: “The Sixteen-Millimeter Shrine”

12pm: “Long Live Walter Jameson”

12:30pm: “A Piano in the House”

1pm: “What’s in the Box”

1:30pm: “Black Leather Jackets”

2pm: “A Nice Place to Visit”

2:30pm: “The 7th is Made up of Phantoms”

3pm: “King Nine Will Not Return”

3:30pm: “Mr. Denton on Doomsday”

4pm: “The Shelter”

4:30pm: “Night of the Meek”

5pm: “It’s a Good Life”

5:30pm: “Probe 7, Over and Out”

6pm: “A Kind of Stopwatch”

6:30pm: “Little Girl Lost”

7pm: “Will the Real Martian Please Stand Up?”

7:30pm: “Eye of the Beholder”

8pm: “The Invaders”

8:30pm: “Where is Everybody?”

9pm: “The Hitch-Hiker”

9:30pm: “To Serve Man”

10pm: “Nightmare at 20,000 Feet”

10:30pm: “Living Doll”

11pm: “The Masks”

11:30pm: “I Sing the Body Electric”

Jan. 1, 2013

12am: “The Midnight Sun”

12:30am: “Stopover in a Quiet Town”

1am: “Long Distance Call”

1:30am: “The Old Man in the Cave”

2am: “The After Hours”

2:30am: “Mr. Bevis”

3am: “Twenty Two”

3:30am: “The Grave”

4am: “Night Call”

4:30am: “Judgment Night”

5am: “Nightmare as a Child”

5:30am: “The Four of Us Are Dying”

6am: “The Silence”

6:30am: “I Shot an Arrow into the Air”

7am: “In Praise of Pip”

7:30am: “Uncle Simon”

8am: “Queen of the Nile”

8:30am: “A World of His Own”

9am: “Mr. Garrity and the Graves”

9:30am: “A Thing About Machines”

10am: “The Last Rites of Jeff Myrtlebank”

10:30am: “Hocus-Pocus and Frisby”

11am: “A Short Drink from a Certain Fountain”

11:30am: “The Arrival”

12pm: “Escape Clause”

12:30pm: “And When the Sky Was Opened”

1pm: “The Hunt”

1:30pm: “People Are Alike All Over”

2pm: “Caesar and Me”

2:30pm: “The Odyssey of Flight 33”

3pm: “A Penny for Your Thoughts”

3:30pm: “Third from the Sun”

4pm: “The Little People”

4:30pm: “Nick of Time”

5pm: “Number 12 Looks Just Like You”

5:30pm: “A Hundred Yards Over the Rim”

6pm: “A Most Unusual Camera”

6:30pm: “Five Characters in Search of an Exit”

7pm: “A Stop at Willoughby”

7:30pm: “The Monsters are Due on Maple Street”

8pm: “The Howling Man”

8:30pm: “Time Enough at Last”

9pm: “The Bewitchin’ Pool”

9:30pm: “Kick the Can”

10pm: “The Obsolete Man”

10:30pm: “The Dummy”

11pm: “Dead Man’s Shoes”

11:30pm: “A Game of Pool”

Jan. 2, 2013

12am: “The Rip Van Winkle Caper”

12:30am: “I Am the Night — Color Me Black”

1am: “Walking Distance”

1:30am: “Ring-a-Ding Girl”

2am: “Mr. Dingle, the Strong”

2:30am: “The Lonely”

3am: “Two”

3:30am: “The Brain Center at Whipple’s”

4am: “The Last Flight”

4:30am: “The Purple Testament”