Big Brother(7 p.m., Ch. 2): The veto competition takes place.

The Middle (7 p.m., Ch. 4): Frankie is excited about being invited to a neighborhood Halloween party.

So You Think You Can Dance (7 p.m., Ch. 13): The top 10 dancers perform.

Franklin & Bash (7 p.m., TNT): A judge places Franklin and Bash on house arrest.

Modern Family (7:30 and 8 p.m., Ch. 4): A pair of repeat episodes.

Criminal Minds (8 p.m., Ch. 2): The team travels to a North Carolina town where one woman was found badly injured and another is missing.

America's Got Talent (8 p.m., Ch. 5): Four acts advance to the top 24.

Legend Quest (8 p.m., Syfy): Ashley and his team search for the Excalibur and the Lost Cintamani Stone.

Happy Endings (8:30 p.m., Ch. 4): Jane thinks she and Brad should befriend a sophisticated couple.

CSI (9 p.m., Ch. 2): A body is found in a box donated to a thrift store.

Primetime Nightline: Beyond Belief (9 p.m., Ch. 4): Terry Moran investigates the belief that satanic will or possession by a demon can result in acts of evil.

Love in the Wild (9 p.m., Ch. 5): The seven remaining couples travel through 100 degree heat and crawl through the Venado Caves.