(All times Eastern.)
Kevin Can Wait (CBS at 8:30) Kevin does a little redecorating.
Presidential debate (various at 9) NBC's Lester Holt moderates the first presidential debate between Democratic nominee Hillary Clinton and Republican candidate Donald Trump. The debate airs on the four major broadcast networks, PBS, and cable channels including CNN, MSNBC, Fox News and Univision.
Too Close to Home (TLC at 9) Anna gets an icy welcome when she returns home.
finale
Food Network Star Kids (Food at 7) The three remaining contestants make sizzle reels before tackling the culinary challenge that will decide the winner.
Late Night
Daily Show (Comedy Central at 11) Alicia Menendez.
Watch What Happens Live (Bravo at 11) Amy Schumer.
Fallon (NBC at 11:34) Samuel L. Jackson, Gina Rodriguez, the Lemon Twigs.
Colbert (CBS at 11:35) Rob Lowe, Kal Penn.
Kimmel (ABC at 11:35) Owen Wilson, Zach Galifianakis, Kristen Wiig, the Lumineers.
Corden (CBS at 12:37) Lea Michele, Norm Macdonald, Nothing But Thieves.
Meyers (NBC at 12:37) Will Forte, Mandy Moore, David Ortiz, Danny Carey.