The new series “Las Vegas Law” (Investigation Discovery, 10 p.m.) follows the work of Clark County District Attorney Steve Wolfson and his team of prosecutors as they work on a number of lurid Sin City cases. The series is shot in a cinema verite style instead of the usual re-enactments. First up is is a triple murder case.
“Scandal” (ABC, 9 p.m.) reaches its fifth season finale in which the candidates chose their running mates. Carly Fiorina is available.
Other season finales tonight include “The Big Bang Theory” (CBS, 8 p.m.) which includes guest appearances by Judd Hirsch, Christine Baranski and Laurie Metcalf as various parents.
Linda Lavin guest stars on “Mom” (CBS, 9 p.m.).
Han tries to pay a gambling debt on the fifth season finale of “2 Broke Girls” (CBS, 9:30 p.m.).
The fifth season of “Mountain Men” (History, 10 p.m.) begins with Morgan, Tom and Rich all experiencing bad times.
Eddie visits Tijuana and Mexicali, Mexico on “Huang’s World” (Viceland, 10 p.m.).
Amy is elected president on a new “Inside Amy Schumer” (Comedy Central, 10 p.m.)
Ben agrees to help someone break out of FBI custody on “The Catch” (ABC, 8 p.m.).
A private investigator’s body is found frozen in the Potomac on “Bones” (Fox, 8 p.m.).
Sara takes over the Waverer on “DC’s Legends of Tomorrow” (The CW, 8 p.m.).
Five teams remain on “Strong” (NBC, 8 p.m.); survival skills are tested on “American Grit” (Fox, 9 p.m.).
Allie’s master plan comes together in the first of a two part “The 100” (The CW, 9 p.m.).
It’s also the first of a two part caper on “The Blacklist” (NBC, 9 p.m.).
Volunteers are nearing their run on “60 Days In” (A&E, 10 p.m.).
“American Greed” (CNBC, 10 p.m.) looks at the Psychic Friends Network.
Wall Street excess marks the latest episode of “The Eighties” (CNN, 9 p.m.).
Winter preparations are made in Alaska on “Life Below Zero” (National Geographic, 9 p.m.).
A bar fight breaks out on “Archer” (FX, 10 p.m.).
Dione’s ex-girlfriend visits “The Real World” (MTV, 10 p.m.).
It’s Gina Rodriguez vs. Wilmer Valderrama on “Lip Synch Battle” (Spike, 10 p.m.).
The relationship of Owen and Amelia grows on “Grey’s Anatomy” (ABC, 8 p.m.).
The month-long Thursday night salute to American International Pictures continues with some of its horror output with “Pit and the Pendulum” (8 p.m.), “X- The Man with X-Ray Eyes” (9:30 p.m.), “Dementia 13” (11 p.m.), “Black Sabbath” (12:30 a.m.), “The Comedy of Terrors” (2:30 a.m.) and “Master of the World” (4:15 a.m.).
A game 7 in the Stanley Cup western conference semifinals has Nashville at San Jose (NBC Sports, 7 p.m.).
In the NBA playoffs, it’s San Antonio at Oklahoma City (ESPN, 8:30 p.m.).
Baseball includes Kansas City at Yankees (MLB, 7 p.m.).
And in golf, first round play begins in The Players Championship (Golf, 1 p.m.).
The closing ceremony of the Invictus Games (ESPN2, 7 p.m.) in Orlando features Rascal Flatts, Flo Rida, Rachel Platten and Prince Harry.
Daytime Talk
Kelly & Michael: Kate Beckinsale, Joe Morton, Kelsea Ballerina. The View: Alex Martin, Pepe the Prawn. The Talk: Marilu Henner, Simon Helberg. Ellen Degeneres: Alec Baldwin, Keith Urban. Wendy Williams: Piers Morgan, Jene Luciani. The Real: French Montana. Meredith Vieira: Jay Leno, Steve Harvey, Goldie Hawn, Kirstie Alley., Eva Longoria, Richard Gere.
Late Talk
Stephen Colbert: Ryan Gosling, Russell Crowe, Jessie Mueller, Animal Collective. Jimmy Kimmel: Kerry Washington, Shonda Rhimes, Rob Gronkowski, Goo Goo Dolls. Jimmy Fallon: Drake, Megan Kelly, Meghan Trainor, Emily Wells. Seth Meyers: Rachel Maddow, Judd Apatow, Joe Pera, Eric Kretz. James Corden: Mindy Kling, Gordon Ramsay, Transviolet. Carson Daly: Anna Chlumsky, Gems, David Kwong. Tavis Smiley: Dr. David B. Agus, Anna Chlumsky. Trevor Noah: B.J. Novak. Larry Wilmore: Audra McDonald. Conan O’Brien: Ewan McGregor, Tracee Ellis Ross, Matt Donaher.