U.S. Networks
- Overview
- Discovery Channel
- TLC
- Animal Planet
- Discovery Health
- Discovery Kids
- Science Channel
- Investigation Discovery
- Military Channel
- Planet Green
- Fit TV
- HD Theater
- Discovery en EspaƱol
- Discovery Familia
- OWN
Discovery Networks International
Discovery Commerce
Discovery Education
- Overview
- Discovery Education streaming
- Discovery Education Science
- Discovery Education Health
- Discovery Education Assessment
Discovery Digital Media
Discovery Studios
Antenna Audio
CSS Studios
Discovery Enterprises International

- The first nationwide, 24x7 HD network in the U.S.
- Targeting adults, 25-54, particularly men
- Launched: June 17, 2002
- Subscribers: 25 million U.S. households
The first 24-hour high-definition network to broadcast all of its content in brilliant 1080i and 5.1 digital surround sound, HD Theater offers compelling, real-world content in virtually all categories of entertainment from across Discovery’s family of networks. HD Theater showcases programming about adventure, nature, wildlife, history, travel, science and technology, world culture and more — all designed to provide viewers with the highest-quality television experience available.
Programming highlights on HD Theater include the critically acclaimed Sunrise Earth, as well as "motorized" HD content including the original series Chasing Classic Cars and live events like the Mecum Auto Auctions.
