Half-Ton Teen: Confronting Addiction
Doctors try to save the life of a young man with a dubious distinction in this special. Billy Robbins was once the world's heaviest teen, and he's on the road to gaining weight again. Doctors confront him and his mother about his self-destruction. TLC, 6 p.m.
How I Met Your Mother
With the wedding fast approaching, Ted (Josh Radnor) must choose which lady he'll spend the weekend with, and he chooses poorly. At the same time, Robin (Cobie Smulders) and Barney (Neil Patrick Harris) have a confrontation with their minister. CBS, Citytv 7 p.m.
Blake Shelton teams up with Cher to help his team of vocalists through the ever-important battle round. Cher and fellow advisers Ryan Tedder, Miguel and Ed Sheeran share their expertise with the singers. CTV, NBC 7 p.m.
David Letterman: Alec Baldwin, Toni Collette
Jay Leno: Michael Douglas, Larry the Cable Guy
Jimmy Kimmel: James Franco, Snoop Lion
Craig Ferguson: Jay Leno, Cameron Esposito
Jimmy Fallon: Alec Baldwin, Chris Cornell with the Avett Brothers