Here's what will be airing on TBS on Flag Day, all times Eastern:

6am-The Office: "Roy's Wedding" (S9E2, OAD: September 27, 2012)
6:30am-The Office: "Andy's Ancestry" (S9E3, OAD: October 4, 2012)
7am-The Office: "Work Bus" (S9E4, OAD: October 18, 2012)
7:30am-The Office: "Here Comes Treble" (S9E5, OAD: October 25, 2012)
8am-Modern Family: "Fizbo" (S1E9, OAD: November 25, 2009)
8:30am-Modern Family: "Hawaii" (S1E23, OAD: May 12, 2010)
9am-Modern Family: "Boys' Night" (S2E18, OAD: March 23, 2011)
9:30am-Modern Family: "Schooled" (S4E2, OAD: October 10, 2012)
10am-Modern Family: "Suddenly, Last Summer" (S5E1, OAD: September 25, 2013)
10:30am-Modern Family: "The Wedding: Part 1" (S5E23, OAD: May 14, 2014)
11am-Modern Family: "The Wedding: Part 2" (S5E24, OAD: May 21, 2014)
11:30am-Modern Family: "Five Minutes" (S8E18, OAD: March 29, 2017)
12pm-Modern Family: "My Hero" (S4E22, OAD: May 8, 2013)
12:30pm-Modern Family: "Games People Play" (S4E23, OAD: May 15, 2013)
1pm-Friends: "The One with the Flashback" (S3E6, OAD: October 31, 1996)
1:30pm-Friends: "The One with the Race Car Bed" (S3E7, OAD: November 7, 1996)
2pm-Friends: "The One with the Giant Poking Device" (S3E8, OAD: November 14, 1996)
2:30pm-Friends: "The One with the Football" (S3E9, OAD: November 21, 1996)
3pm-Friends: "The One Where Rachel Quits" (S3E10, OAD: December 12, 1996)
3:30pm-Friends: "The One Where Chandler Can't Remember Which Sister" (S3E11, OAD: January 9, 1997)
4pm-Friends: "The One with All the Jealousy" (S3E12, OAD: January 16, 1997)
4:30pm-Friends: "The One Where Monica and Richard Are Just Friends" (S3E13, OAD: January 30, 1997)
5pm-Friends: "The One with Phoebe's Ex-Partner" (S3E14, OAD: February 6, 1997)
5:30pm-Friends: "The One Where Ross and Rachel Take a Break" (S3E15, OAD: February 13, 1997)
6pm-The Big Bang Theory: "The Work Song Nanocluster" (S2E18, OAD: March 16, 2009)
6:30pm-The Big Bang Theory: "The Dead Hooker Juxtaposition" (S2E19, OAD: March 30, 2009)
7pm-The Big Bang Theory: "The Hofstadter Isotope" (S2E20, OAD: April 13, 2009)
7:30pm-The Big Bang Theory: "The Vegas Renormalization" (S2E21, OAD: April 27, 2009)
8pm-The Big Bang Theory: "The Classified Materials Turbulence" (S2E22, OAD: May 4, 2009)
8:30pm-The Big Bang Theory: "The Monopolar Expedition" (S2E23, OAD: May 11, 2009)
9pm-The Big Bang Theory: "The Electric Can Opener Fluctuation" (S3E1, OAD: September 21, 2009)
9:30pm-The Big Bang Theory: "The Jiminy Conjecture" (S3E2, OAD: September 28, 2009)
10pm-The Big Bang Theory: "The Gothowitz Deviation" (S3E3, OAD: October 5, 2009)
10:30pm-The Big Bang Theory: "The Pirate Solution" (S3E4, OAD: October 12, 2009)
11pm-The Big Bang Theory: "The Creepy Candy Coating Corollary" (S3E5, OAD: October 19, 2009)
11:30pm-The Big Bang Theory: "The Cornhusker Vortex" (S3E6, OAD: November 2, 2009)
12am-Central Intelligence (RD: June 17, 2016)
2am-Angels in the Outfield (RD: July 15, 1994)
4am-Central Intelligence (RD: June 17, 2016)