Shark Tank (9pm, ABC) - Mark and Lori offer an entrepreneur an investment of $1 million, and an engineer runs into difficulty while discussing finances. Also, the makers of a peanut butter from Season 3 give an update on their business.

Great Performances: Paul Simon's Graceland Journey (9pm, UNC-TV) - The making of Paul Simon's 1986 "Graceland" album is recalled in this documentary, which accompanies the singer-songwriter on a visit to South Africa, where he reunites with some of the musicians involved in the recording.

Over/Under (10pm, USA) - This was originally supposed to be a new USA series, but it was scrapped after this two-hour pilot was filmed. Not because it was bad, but because its "darker tones" didn't really fit with the quirky "Characters Welcome" USA vibe. It's now a two-hour movie about a Manhattan day trader whose massive gambling problem costs him his job, forcing he and his photographer wife to relocate to Brooklyn. In Brooklyn, the man and a young father-to-be start a high-end bookie business. Stars Steve Pasquale, Caroline Dhavernas, Anthony Carrigan and "Breaking Bad" villain Giancarlo Esposito.

Blue Bloods (10pm, CBS) - Danny and Kate search for a sniper who appears to be a radical environmentalist. Meanwhile, Danny's youngest son is seriously injured in a bicycle accident.

The Dead Files (10pm, Travel) - Amy and Steve visit a Seattle restaurant, which they come to believe is haunted by spirits who want to cause harm. Also, evidence of a bloody massacre is uncovered.

Nikita (8pm, CW) - Nikita and Michael capture an arms dealer and use him for bait in an attempt to catch Amanda. Meanwhile, Birkhoff searches for Amanda's mole.

Adrift: 47 Days with Sharks (9pm, Animal Planet) - The story of U.S. soldiers in shark-infested waters is chronicled.

CSI: NY (9pm, CBS) - The owner of a 1920s-inspired speakeasy is murdered (in a Christmas tree lot, apparently) and $10,000 is stolen. Meanwhile, Adam spends his day off in a surprising way.

Fringe (9pm, FX) - Peter's observation of Windmark puts him in grave danger. Also, Olivia goes on a mission to find equipment for Walter, and meets a woman with remarkable intuition.

Hunted (10pm, Cinemax) - In the Season 1 finale, Sam's cover is blown, and Jack Turner resolves what to do about the evidence he's gathered, leaving Sam and the Byzantium team scrambling to stop him.

The Dead Files (10pm, Travel) - Paranormal investigators Steve and Amy visit the Victor R. Small House in Clinton, N.C., a historic home long believed to be haunted. While there, Steve finds evidence of a suicide and Amy becomes mysteriously ill.

Blue Bloods (10pm, CBS) - Linda overhears a shooting victim talking to his priest about a case Danny is investigating. Elsewhere, Henry gets mugged and Jamie vehemently pursues the attacker.

An episode of "The Dead Files" airing Friday night on the Travel Channel will feature a house in Clinton, N.C., that many people have long believed to be haunted.

The Victor R. Small House, a large classic-revival style house built around 1870, was once the home of a local physician who relocated to Clinton from Ohio in 1923. It now belongs to the Sampson Arts Council and is operated as a gallery and museum.

The description for Friday's episode says that volunteers at the Small House believe it to be haunted. The paranormal team of Steve DiSchiavi and Amy Allan (pictured here) from "The Dead Files" investigate, and Steve discovers evidence of a suicide there, while Amy becomes sick with a mysterious illness.

The one-hour episode is titled "The House of Death."

"The Dead Files" will air at 10 p.m. on the Travel Channel.

2012 Summer Olympics (NBC) - You can check to see when and where games are playing on the NBC Olympics schedule page. Highlights include track and field relay races, the men's pole vault and BMX finals. Tips on watching the Olympic games.
 
Unusual Suspects (9pm, Discovery) - In the Season 3 premiere, an attack on a Pennsylvania family that left only one survivor.

Common Law (10pm, USA) - In the Season 1 finale, Wes and Travis (left) finally share the story of what landed them in therapy.

Chasing UFOs (10pm, NGC) - Erin, Ben and James travel to Varginha, Brazil, known as the "Roswell of South America," because numerous UFO sightings have been reported there. The team investigates rumors of alien life forms hiding in the jungles just outside the city.

The Dead Files (10pm, Travel) - In the Season 2 opener, a dentist claims that his home office in Huntington, West Virginia, is haunted. Amy and Steve investigate.

Comedy Bang! Bang! (10pm, IFC) - Guests for the Season 1 finale are "Weird Al" Yankovic and Tenacious D.

Lost Girl (10pm, Syfy) - Bo becomes entangled in Fae politics while she tries to save some important people.