highest rated
acting
- Prehistoric Worlds → Self - Paleontologist and Director, Smithsonian
- 100,000 Acres of Pine → Eric 'Concerned Ranger' Jones
- Polar Extremes → Host
- Polar Extremes (TV)
- Great Yellowstone Thaw (TV) → Himself - Presenter
- Ice Age Death Trap → Himself - Denver Museum of Nature & Science
- 24 Hours After: Asteroid Impact
- NOVA (TV) → Host