Science Channel HD
美国
Science Channel HD播出以工程、自然科學、太空探索與科技為核心的非虛構節目。其節目表包含紀錄片系列，探討事物如何建造、科學原理如何應用於日常生活，以及研究人員如何在物理與生物等領域進行實驗。該頻道也播出關於歷史發明、現代製造流程，以及工程師與技術人員工作的內容。部分節目聚焦於極端天氣、地質事件，或車輛與機械的運作原理。該頻道的節目編排傾向於以事實為基礎的觀察式敘事，而非戲劇化的重演。透過有線電視與衛星服務，全美均可收看。
除了線性播送外，許多單集與完整系列也可透過隨選視訊服務及串流平台取得，這些平台均提供該頻道的內容。《Science Channel HD》的電視節目表因供應商與地區而異，因此個別節目的具體播出時間取決於當地時程。該頻道不播出電影、音樂錄影帶、新聞、體育或宗教節目；其重點始終維持在與科學及技術相關的紀錄片與教育素材上。
节目表
00:00 - 01:00
Expedition Unknown: Hunt for Extraterrestrials
Close Encounters
Series, Travel, Adventure
A once-in-a-lifetime visit to NASA; evidence of aliens in Chile; a UFO video captured by the military; the largest telescope on Earth.
01:00 - 02:00
Expedition Unknown: Hunt for Extraterrestrials
Ancient Visitors
Series, Travel, Adventure
Josh's journey continues on remote Easter Island, where ancient alien theorists believe extraterrestrials visited a millennium ago; the site of a recent meteorite strike in Zimbabwe that could prove life on Earth began in outer space.
02:00 - 03:00
Expedition Unknown: Hunt for Extraterrestrials
UFOs Over England
Series, Travel, Adventure
The hunt for alien life continues in Zimbabwe, where Josh interviews witnesses from one of the largest UFO sightings in modern history; the infamous case that has become known as Europe's Roswell in England.
03:00 - 04:00
Expedition Unknown: Hunt for Extraterrestrials
Roswell Revealed
Series, Travel, Adventure
Josh's epic search for extraterrestrial life comes to a close in the USA, where a legendary investigation team brings him to a hot case in Arkansas; a researcher who may have new information on the mother of all UFOs.
04:00 - 05:00
Expedition Unknown: Hunt for Extraterrestrials
Ancient Visitors
Series, Travel, Adventure
Josh's journey continues on remote Easter Island, where ancient alien theorists believe extraterrestrials visited a millennium ago; the site of a recent meteorite strike in Zimbabwe that could prove life on Earth began in outer space.
05:00 - 06:00
Expedition Unknown: Hunt for Extraterrestrials
UFOs Over England
Series, Travel, Adventure
The hunt for alien life continues in Zimbabwe, where Josh interviews witnesses from one of the largest UFO sightings in modern history; the infamous case that has become known as Europe's Roswell in England.
06:00 - 07:00
Expedition Unknown: Hunt for Extraterrestrials
Roswell Revealed
Series, Travel, Adventure
Josh's epic search for extraterrestrial life comes to a close in the USA, where a legendary investigation team brings him to a hot case in Arkansas; a researcher who may have new information on the mother of all UFOs.
07:00 - 08:00
Expedition Unknown: Hunt for Extraterrestrials
Close Encounters
Series, Travel, Adventure
A once-in-a-lifetime visit to NASA; evidence of aliens in Chile; a UFO video captured by the military; the largest telescope on Earth.
08:00 - 09:00
Forbidden History
Mary Magdalene Enigma
Series, History
Mary Magdalene played a pivotal role in early Christianity and witnessed the execution and resurrection of Jesus Christ; experts investigate the truth behind her mysterious disappearance and embark on a quest to locate her undiscovered remains.
09:00 - 10:00
Forbidden History
Secrets of Gobekli Tepe
Series, History
The ancient site of Göbekli Tepe is the oldest building complex ever discovered and continues to baffle archaeologists; experts investigate new theories behind its construction as a possible commemoration to a cataclysmic event.
10:00 - 11:00
BattleBots
Everyone Wants to be the Hotshot
Series, Competition Reality
Legends Hypershock and Bite Force face off in an epic showdown, while up-and-comers try to prove they have what it takes to be crowned 2018 BattleBots World Champion.
11:00 - 12:00
BattleBots
There's No Tapping Out in BattleBots!
Series, Competition Reality
Reigning champion Tombstone takes on the legendary Gigabyte as the battles heat up to take home the renowned BattleBots trophy.
12:00 - 13:00
NASA's Unexplained Files
Rise of the Planet Killer
Series, Documentary, Science, Paranormal
A Mars mission captures an image of a strange structure on the planet; an intriguing sight on the dark side of the moon; a planet-eating star gives scientists a peek of Earth's bleak future.
13:00 - 14:00
How the Universe Works
When Supernovas Strike
Series, Science, Documentary
Supernovas are the violent death of giant stars, and new discoveries reveal that these cataclysmic events create the elements that are essential to all life in the universe.
14:00 - 15:00
How the Universe Works
Did the Big Bang Really Happen?
Series, Science, Documentary
New discoveries cause astronomers to question if the Big Bang really happened; using the latest science, they investigate if it wasn't just the start of the universe but many mysterious multiverses.
15:00 - 16:00
Mission Unexplained
Scared Shipless
Series, Paranormal
A Navy seaman experiences strange events in the heart of the Bermuda Triangle; an Air Force Staff Sergeant is confronted by an otherworldly being in Iraq; a tech sergeant discovers a haunting visitor in her air base house.
16:00 - 17:00
Mission Unexplained
Unidentified Alien Phenomenon
Series, Paranormal
A Russian Infantryman fights an unknown presence in a Chechen forest.
17:00 - 18:00
Mission Unexplained
Rise of the Damned
Series, Paranormal
An intelligence analyst on a secret mission makes an unearthly discovery.
18:00 - 19:00
Mission Unexplained
Moose Jaw Nightmare
Series, Paranormal
An unknown presence pulls an Armed Forces officer into a living nightmare.
19:00 - 20:00
Mission Unexplained
Not From Earth
Series, Paranormal
An unearthly presence at a nuclear launch site in Cyprus visits a UN peacekeeper and helps him fight off a deadly enemy.
20:00 - 21:00
Strangest Things
The Macabre Hat of Teeth
Series, Documentary, Science
A museum in South London contains a disturbing tattered hat made of brown felt and decorated with more than 80 human teeth; using the latest imaging technology, experts investigate to uncover the macabre origins of this mysterious Victorian-era cap.
21:00 - 22:00
Strangest Things
The Psychograph
Series, Documentary, Science
Investigating whether a machine can read personalities; an ancient golden mask painted with human blood; a cursed chicken pot.
22:00 - 23:00
Strangest Things
The Assassination Sphere
Series, Documentary, Science
A minuscule metal sphere containing two microscopic holes could be the smallest murder weapon in history; experts explore how this tiny object is linked to one of the most bizarre true crime cases of the 20th century.
23:00 - 00:00
Strangest Things
The Dixon Relics
Series, Documentary, Science
A stone sphere, a hook and five fragments of wood are the only objects ever discovered inside the Great Pyramid of Giza; experts investigate if they can explain the mysteries behind the only surviving Wonder of the Ancient World.