- Extended Interview: Sergei Sikorsky Tukufu Zuberi speaks with the son of Igor Sikorsky, the Russian-born aviation pioneer.
- Face Jug Investigation Update Learn what contributor April Hines learned about her face jug after the HD investigation.
- Fitness, Flappers and Phonograph Records Who was the man behind these 1920s exercise records? Did he pioneer media fitness?
- History Detective's Most Common Artifacts Find out why the most common History Detectives objects come from WWII.
- McDonald's Commercials Watch some McDonald's commercials from the 1960s (no audio)
- Moon Museum Update: Searching for John F. An update on our Moon Museum story asking viewers to help us solve the mystery of John F.
- On the Road: A Tour of the Kennedy Farmhouse Wes Cowan goes on a tour of the Kennedy Farmhouse.
- On the Road: Eduardo goes sledding History Detective Eduardo Pagan goes sledding. It's all part of the job.
- Roosevelt's 1912 Campaign Silent footage of Teddy Roosevelt campaigning in Fargo, North Dakota on September 6, 1912.
- TDR-1 Test Mission View footage from the TDR-1 test mission.
- To Glove or Not To Glove? Find out how, when and why the History Detectives use gloves in their investigations.
- Web Extra: Interview with Si Lewen History Detective Gwen Wright speaks with Si Lewen, a 92-year old veteran of Camp Ritchie.
- Yak Canutt: Devil Horse Clip In this clip from Devil Horse, stuntman Yak Canutt can be seen riding a horse.
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