In honor of National Twilight Zone Day this Monday, this Sunday, Syfy will do an all-day marathon of this iconic anthology sci-fi/horror series!

List of episodes, all times Eastern:

8am-S3E1: "Two" (OAD: September 15, 1961)
8:30am-S1E19: "The Purple Testament" (OAD: February 12, 1960)
9am-S5E21: "Spur of the Moment" (OAD: February 21, 1964)
9:30am-S3E22: "A Piano in the House" (OAD: February 16, 1962)
10am-S1E4: "The Sixteen-Millimeter Shrine" (OAD: October 23, 1959)
10:30am-S5E3: "Nightmare at 20,000 Feet" (OAD: October 11, 1963)
11am-S4E18: "The Bard" (OAD: May 23, 1963)
12pm-S2E7: "Nick of Time" (OAD: November 18, 1960)
12:30pm-S3E13: "Once Upon a Time" (OAD: December 15, 1961)
1pm-S1E7: "The Lonely" (OAD: November 13, 1959)
1:30pm-S4E10: "No Time Like the Past" (OAD: March 7, 1963)
2:30pm-S4E14: "Of Time I Think of Cliffordville" (OAD: April 11, 1963)
3:30pm-S1E18: "The Last Flight" (OAD: February 5, 1960)
4pm-S5E29: "The Jeopardy Room" (OAD: April 17, 1964)
4:30pm-S5E27: "Sounds and Silences" (OAD: April 3, 1964)
5pm-S5E23: "Queen of the Nile" (OAD: March 6, 1964)
5:30pm-S2E22: "Long Distance Call" (OAD: March 31, 1961)
6pm-S5E26: "I Am the Night - Color Me Black" (OAD: March 27, 1964)
6:30pm-S5E11: "A Short Drink from a Certain Fountain" (OAD: December 13, 1963)
7pm-S5E28: "Caesar and Me" (OAD: April 10, 1964)
7:30pm-S5E35: "The Fear" (OAD: May 29, 1964)
8pm-S5E36: "The Bewitchin' Pool" (OAD: June 19, 1964)
8:30pm-S2E26: "Shadow Play" (OAD: May 5, 1961)
9pm-S5E12: "Ninety Days Without Slumbering" (OAD: December 20, 1963)
9:30pm-S2E23: "A Hundred Yards Over the Rim" (OAD: April 7, 1961)
10pm-S1E2: "One for the Angels" (OAD: October 9, 1959)
10:30pm-S1E5: "Walking Distance" (OAD: October 30, 1959)
11pm-S1E8: "Time Enough at Last" (OAD: November 20, 1959)
11:30pm-S5E19: "Night Call" (OAD: February 7, 1964)
12am-S5E13: "Ring-a-Ding Girl" (OAD: December 27, 1963)
12:30am-S5E2: "Steel" (OAD: October 4, 1963)
1am-S5E33: "The Brain Center at Whipple's" (OAD: May 15, 1964)
1:30am-S3E36: "Cavender Is Coming" (OAD: May 25, 1962)
2am-S5E8: "Uncle Simon" (OAD: November 15, 1963)
2:30am-S5E17: "Number 12 Looks Just Like You" (OAD: January 24, 1964)
3am-S3E2: "The Arrival" (OAD: September 22, 1961)
3:30am-S5E7: "The Old Man in the Cave" (OAD: November 8, 1963)
4am-S5E4: "A Kind of a Stopwatch" (OAD: October 18, 1963)
4:30am-S5E32: "Mr. Garrity and the Graves" (OAD: May 8, 1964)
5am-S3E10: "The Midnight Sun" (OAD: November 17, 1961)
5:30am-S1E15: "I Shot an Arrow into the Air" (OAD: January 15, 1960)
6am-S1E1: "Where Is Everybody?" (OAD: October 2, 1959)