15x1 - Episode 1

September 5, 2017

15x2 - Episode 2

September 6, 2017

15x22 - Episode 22

October 4, 2017

15x40 - Jim Parsons/Iain Armitage/Demi Lovato/Ziqi Li

October 30, 2017

15x48 - 2500th Episode of The Ellen DeGeneres Show

November 9, 2017

15x50 - Episode 50

November 13, 2017

15x53 - Blake Shelton/Jacob Tremblay/Steve Spangler

November 16, 2017

15x58 - Episode 58

November 27, 2017

15x85 - Episode 85

January 15, 2018

15x92 - Best Moments of Season 15

January 30, 2018

15x124 - Episode 124

March 22, 2018

15x125 - Episode 125

March 23, 2018

15x126 - Episode 126

April 2, 2018

15x129 - Episode 129

April 5, 2018

15x146 - Episode 146

April 30, 2018

15x148 - Jennifer Lopez, Derek Hough, Ne-Yo, Jenna Dewan, BDash & Konkrete, and James Shaw Jr.

May 2, 2018

15x149 - Julie Bowen and Leon Bridges

May 3, 2018

15x165 - Episode 165

May 25, 2018

15x169 - Mindy Kaling/David Spade/Michael Ray

June 4, 2018

15x183 - Episode 183

August 30, 2018

15x190 - Jenna Fischer/Simon Cowell/Nicole Maines/Hozier & Mavis Staples

October 9, 2018

Actress Jenna Fischer ("Splitting Up Together"); TV personality Simon Cowell; actress Nicole Maines ("Supergirl"); Hozier and Mavis Staples perform;