- Birth of the Solar System (Monday 05 April 2021)
- Storm Chaser's Guide: Hurricane Harvey (Tuesday 06 April)
- Pompeii: The Mystery of the People Frozen in Time (Wednesday 07 April)
- Secrets of the Solar System: The Grand Tour (Thursday 08 April)
- Secrets of the Solar System: Sun & Mercury (Friday 09 April)
- Secrets of the Solar System: Venus (Saturday 10 April)
- Secrets of the Solar System: Mars (Sunday 11 April)
- Secrets of the Solar System: Jupiter (Monday 12 April)
- Secrets of the Solar System: Saturn (Tuesday 13 April)
- Secrets of the Solar System: Asteroids & Comets (Wednesday 14 April)
- Secrets of the Solar System: Pluto (Thursday 15 April)
- Seasons of the Otter (Saturday 17 April)
- Ancient Earth (s1): The Permian (Sunday 18 April)
- Ancient Earth (s1): The Triassic (Sunday 18 April)
- Ancient Earth (s1): The Cretaceous (Sunday 18 April)
- Ancient Earth (s2): What Killed the Giant Insects? (Monday 19 April)
- Ancient Earth (s2): The Mystery of the Feathered Dragons (Tuesday 20 April)
- Ancient Yellowstone: Alien Life (Saturday 22 May)
- Ancient Yellowstone: Frozen Archaeology (Thursday 27 May)
- Ancient Yellowstone: The Petrified Forest (Friday 28 May)
- Rock the Park (s1): Katmai: Where the Bears Are (Saturday 29 May)
- Rock the Park (s1): Glacier Bay: White Thunder (Sunday 30 May)
- Rock the Park (s1): North Cascades: Life on the Edge (Thursday 03 June)
- Rock the Park (s1): Olympic: Obstacles and Animals (Saturday 05 June)
- Rock the Park (s1): Katmai: Journey to the Volcano (Monday 07 June)
- Rock the Park (s1): Voyageurs: Living off the Land (Friday 25 June)
- Rock the Park (s1): Glacier National Park: Rocky Mountain High (Saturday 26 June)
- Rock the Park (s1): Glacier National Park: Bears, Big Horns, and Glaciers (Saturday 03 July)
- Rock the Park (s1): Shenandoah: Climbing Virginia Rocks (Monday 05 July)
- Rock the Park (s1): Mammoth Cave: All About the Bats (Wednesday 07 July)
- Rock the Park (s1): Zion: Red Rock Canyons High and Narrow (Thursday 08 July)
- Rock the Park (s1): Bryce Canyon: Horses, Hoodoos, and Mud Water (Saturday 10 July)
- Rock the Park (s1): Yellowstone: Hot Spots and Wildlife (Sunday 11 July)
- Rock the Park (s1): Yellowstone: Old Park, New Views (Tuesday 13 July)
- Rock the Park (s2): Cumberland: Island Animal Encounters (Friday 16 July)
- Rock the Park (s2): Dry Tortugas: Fort Finds and Deep Dives (Saturday 17 July)
- Rock the Park (s2): Great Smoky: Big, Tiny & Slimy (Sunday 18 July)
- Rock the Park (s2): Padre Island: Keeping Up with the Kemp's Ridleys (Monday 19 July)
- Rock the Park (s1): Sequoia: In the Land of the Giants (Wednesday 21 July)
- Rock the Park (s1): Death Valley: Destination Desert (Saturday 24 July)
- Rock the Park (s1): Joshua Tree: A Climber's Paradise (Monday 26 July)
- Rock the Park (s1): Haleakala: In the House of the Sun (Thursday 29 July)
- Rock the Park (s1): Hawaii Volcanoes: Trekking Mauna Loa (Sunday 01 August)
- Rock the Park (s1): Everglades National Park: Slough Slogging and Sea Kayaking (Tuesday 03 August)
- Rock the Park (s1): Pictured Rocks: Sleds and Snow Beds (Saturday 07 August)
- Rock the Park (s1): Santa Monica Mountains: From Canyon to Coast (Sunday 08 August)
- Rock the Park (s2): Apostle Islands: Sunken Ships and Carved Caves (Wednesday 11 August)
- Rock the Park (s2): Glacier: Grizzly Bears and Rough Rapids (Saturday 14 August)
- Rock the Park (s2): Denali: What Lies Beneath (Monday 16 August)
- Rock the Park (s2): Aniakchak: Wicked Whitewater (Saturday 21 August)
- Rock the Park (s2): Craters of the Moon (Wednesday 25 August)
- Rock the Park (s2): Denali: The Big Five (Saturday 28 August)
- Rock the Park (s2): Mount Rainier: Man Against Mountain (Monday 30 August)
- Rock the Park (s2): Grand Tetons: Climbing in Grand Exposure (Tuesday 31 August)
- Rock the Park (s2): Rocky Mountain: Ridin' High (Saturday 04 September)
- Rock the Park (s2): Capitol Reef: Cliffs, Canyons, & Culture
- Rock the Park (s2): Acadia: Boulders and the Bay (Sunday 12 September)
- Fatal Forecast: Tornadoes (Monday 20 September)
- Fatal Forecast: Lightning (Thursday 23 September)
- Rock the Park (s2): South Dakota: Road Trip (Saturday 25 September)
- Fatal Forecast: Tsunamis (Sunday 26 September)
- Fatal Forecast: Hurricanes (Wednesday 29 September)
- Rock the Park (s2): Big Bend: Bent But Don't Break (Saturday 02 October)
- Fatal Forecast: Floods (Sunday 03 October)
- Rock the Park (s2): St. Croix: Into the Abyss (Saturday 09 October)
- Storm Chaser's Guide: Hurricane Irma (Sunday 10 October)
- Countdown to a Catastrophe: Storms (Wednesday 13 October)
- Countdown to a Catastrophe: Volcanoes (Monday 18 October)
- Rock the Park (s2): Virgin Islands National Park (Saturday 30 October)
- Rock the Park (s2): Great Basin: Top and Bottom Extremes (Saturday 13 November)
- Rock the Park (s2): Yosemite: Uphills and Down Falls (Saturday 20 November)
- Rock the Park (s3): Channel Islands National Park (Saturday 27 November)
- Rock the Park (s3): Black Canyon (Sunday 12 December)
- Rock the Park (s3): Dinosaur National Monument (Sunday 12 December)
- Cosmic Front: Betelgeuse (Friday 17 December)
apr 7 2021 ∞
dec 17 2021 +