Here's what will be airing on TBS New Year's Eve and New Year's Day, all times Eastern:

December 31st (New Year's Eve):

6am-Matilda (RD: August 2, 1996)
8am-Blended (RD: May 23, 2014)
10:15am-The Proposal (RD: June 19, 2009)
12:30pm-Blended (RD: May 23, 2014)
2:45pm-The Proposal (RD: June 19, 2009)
5pm-The Big Bang Theory: "The Large Hadron Collision" (S3E15, OAD: February 8, 2010)
5:30pm-The Big Bang Theory: "The Excelsior Acquisition" (S3E16, OAD: March 1, 2010)
6pm-The Big Bang Theory: "The Precious Fragmentation" (S3E17, OAD: March 8, 2010)
6:30pm-The Big Bang Theory: "The Pants Alternative" (S3E18, OAD: March 22, 2010)
7pm-The Big Bang Theory: "The Wheaton Recurrence" (S3E19, OAD: April 12, 2010)
7:30pm-The Big Bang Theory: "The Spaghetti Catalyst" (S3E20, OAD: May 3, 2010)
8pm-All Elite Wrestling: Dynamite
10pm-The Big Bang Theory: "The Plimpton Stimulation" (S3E21, OAD: May 10, 2010)
10:30pm-The Big Bang Theory: "The Staircase Implementation" (S3E22, OAD: May 17, 2010)
11pm-The Big Bang Theory: "The Lunar Excitation" (S3E23, OAD: May 24, 2010)
11:30pm-The Big Bang Theory: "The Robotic Manipulation" (S4E1, OAD: September 23, 2010)
12am-Modern Family: "Daddy Issues" (S9E18, OAD: April 4, 2018)
12:30am-Modern Family: "CHiPs and Salsa" (S9E19, OAD: April 11, 2018)
1am-Modern Family: "Mother!" (S9E20, OAD: May 2, 2018)
1:30am-Modern Family: "The Escape" (S9E21, OAD: May 9, 2018)
2am-Modern Family: "Clash of Swords" (S9E22, OAD: May 16, 2018)
2:30am-Modern Family: "I Love a Parade" (S10E1, OAD: September 26, 2018)
3am-Modern Family: "Kiss and Tell" (S10E2, OAD: October 3, 2018)
3:30am-Modern Family: "A Sketchy Area" (S10E3, OAD: October 10, 2018)
4am-Modern Family: "Torn Between Two Lovers" (S10E4, OAD: October 17, 2018)
4:30am-Modern Family: "Good Grief" (S10E5, OAD: October 24, 2018)
5am-Modern Family: "On the Same Paige" (S10E6, OAD: October 31, 2018)
5:30am-Modern Family: "Did the Chickens Cross the Road?" (S10E7, OAD: November 7, 2018)

January 1st (New Year's Day):

6am-Young Sheldon: "Memoir" (S7E14, OAD: May 16, 2024)
6:30am-Young Sheldon: "Pilot" (S1E1, OAD: September 25, 2017)
7am-Young Sheldon: "Rockets, Communists, and the Dewey Decimal System" (S1E2, OAD: November 2, 2017)
7:30am-Young Sheldon: "Poker, Faith, and Eggs" (S1E3, OAD: November 9, 2017)
8am-Young Sheldon: "A Therapist, a Comic Book, and a Breakfast Sausage" (S1E4, OAD: November 16, 2017)
8:30am-Young Sheldon: "A Solar Calculator, a Game Ball, and a Cheerleader's Bosom" (S1E5, OAD: November 23, 2017)
9am-Young Sheldon: "A Patch, a Modem, and a Zantac®" (S1E6, OAD: November 30, 2017)
9:30am-Young Sheldon: "A Brisket, Voodoo, and Cannonball Run" (S1E7, OAD: December 7, 2017)
10am-Friends: "The One with All the Poker" (S1E18, OAD: March 2, 1995)
10:30am-Friends: "The One Where the Monkey Gets Away" (S1E19, OAD: March 9, 1995)
11am-Friends: "The One with the Evil Orthodontist" (S1E20, OAD: April 6, 1995)
11:30am-Friends: "The One with the Fake Monica" (S1E21, OAD: April 27, 1995)
12pm-The Hangover (RD: June 5, 2009)
2pm-The Hangover Part II (RD: May 26, 2011)
4pm-The Hangover Part III (RD: May 24, 2013)
6pm-The Hangover (RD: June 5, 2009)
8pm-The Big Bang Theory: "The Cruciferous Vegetable Amplification" (S4E2, OAD: September 30, 2010)
8:30pm-The Big Bang Theory: "The Zazzy Substitution" (S4E3, OAD: October 7, 2010)
9pm-The Big Bang Theory: "The Hot Troll Deviation" (S4E4, OAD: October 14, 2010)
9:30pm-The Big Bang Theory: "The Desperation Emanation" (S4E5, OAD: October 21, 2010)
10pm-The Big Bang Theory: "The Irish Pub Formation" (S4E6, OAD: October 28, 2010)
10:30pm-The Big Bang Theory: "The Apology Insufficiency" (S4E7, OAD: November 4, 2010)
11pm-The Hangover Part III (RD: May 24, 2013)
1am-The Hangover Part III (RD: May 24, 2013)
3am-House Party (RD: January 13, 2023)
5am-Modern Family: "Kids These Days" (S10E8, OAD: November 28, 2018)
5:30am-Modern Family: "Puttin Down Roots" (S10E9, OAD: December 5, 2018)