War of the Worlds
In this new documentary, PBS's American Experience looks back on one of the controversial Oct. 30, 1938 broadcast of Orson Welles' radio-play adaptation of H.G. Wells' The War of the Worlds. Most listeners understood it was a scripted drama, but as many as a million confused Americans thought their country was actually being invaded by Martians. PBS, 8 p.m.
The Biggest Loser
Alison Sweeney hosts the show's first-ever auction as the contestants bid on gym equipment with "Biggest Loser" bucks in this new episode. With limited gym equipment to use, the players and their trainers will have to get creative. NBC, 7 p.m.
In the new episode Halloween, Kate tries to take control of the holiday after the costume Jackie made for Bert doesn't quite work out. Meanwhile, Pete takes a teenager hostage. ABC/CTV, 8:30 p.m.
George Stroumboulopoulos: Chris Hadfield
Jay Leno: Savannah Guthrie, Mark Cuban
David Letterman: Rob Lowe, Alan Jackson
Jimmy Kimmel: Jennifer Garner, David Arquette
Craig Ferguson: Alyssa Milano, Lawrence Block
Jimmy Fallon: Kate Bosworth, Tim Conway
The Daily Show: Rep. Debbie Wasserman Schultz
Conan O'Brien: Queen Latifah, Asa Butterfield