Live PD

Some of the most unforgettable moments from "The First 48" are revisited.

Stories of people who are facing trial for serious crimes are featured.

Follow investigators as they reexamine the murders of eleven teenage girls in and around Galveston County, Texas after discovering a confession letter from current inmate and convicted murderer Edward Harold Bell.

HISTORY's longest-running series moves to H2. Modern Marvels celebrates the ingenuity, invention and imagination found in the world around us. From commonplace items like ink and coffee to architectural masterpieces and engineering disasters, the hit series goes beyond the basics to provide insight and history into things we wonder about and that impact our lives. This series tells fascinating stories of the doers, the dreamers and sometime-schemers that create everyday items, technological breakthroughs and manmade wonders. The hit series goes deep to explore the leading edge of human inspiration and ambition.

Robert Hays puts the spotlight on some stories behind significant moments in airports and flights.

Detectives revisit cases featured on "The First 48."