KPTM-DT

The work of investigative genetic genealogist Gabriella Vargas, an undercover cop and a cigarette butt leads investigators to a Michigan woman's killer 34 years after the case went cold.

Stabler and Benson suspect a sugar daddy (Matt C. Burns) of murder when a young woman's body is found stuffed inside a suitcase.

It's the "I Love Mom" show; Jerry O'Connell stops by, and Lindsay Hubbard is here; Steve Patterson hits the streets, Mother's Day style, and a final "I Love Mom" Inbox!

Paid programming.

Paid programming.

The architectural skills of termites; the impressive armor of the three-banded armadillo; the unique adaptations of the flamingo.

Robots' inventors look toward nature to see how animals can help them to do the things that humans cannot.

The world's largest flying observatory; an underwater habitat nearly a mile underground.

Rescue dogs at Yellowstone National Park, and how rangers manage trails in harsh winter conditions; rangers keep visitors safe at parks in Hawaii and Utah.

Learning about the Rubik's cube, brain prints and robots.

Paid programming.

See how a drug-free patch is helping people find relief-without medication.

See why this cleaning tool replaces chemicals and hard labor!

Paid programming.

Learn what's behind mental decline with age, and how to improve memory, focus and concentration with NeuroQ's Darrin Peterson and Dale Bredesen MD.

When Manny and Luke baby-sit Lily so the adults can have a day to themselves, things go awry and Claire is convinced the boys are throwing a party.

Gloria and Claire plan a Mother's Day hike with the kids; things becomes awkward when Phil catches Jay in a moment of weakness.

The DC Defenders welcome the Louisville Kings for a regular-season UFL showdown. First-place DC (5-1) and quarterback Jordan Ta'amu look to extend a five-game winning streak against Chandler Rogers and a struggling Louisville (2-4).

The IndyCar Series road course race meets at the Indianapolis Motor Speedway in Indiana. Pato O'Ward enters the weekend with significant momentum, having maintained a top-five finishing streak. Veteran driver Scott Dixon pursues his 60th career win.

From PETCO Park in San Diego.

TMZ TV tracks down today's hottest stars with their cameras, whether they are hitting the clubs or the dry cleaners.

The pressure quickly builds with the first challenge: being sealed inside airtight bags; a face-off between a coal miner and a cheerleader leads to a shocking end game.

The 118 rush to save lives in the aftermath of a massive train derailment.