Now playing: Survey of the Primates (1970), duration 37:21, on RetroStrange TV1. Watch live: https://live.retrostrange.com #RSTV

Now playing: X Marks the Spot (1944), duration 21:25, on RetroStrange TV1. Watch live: https://live.retrostrange.com #RSTV

Now playing: Safety: Total Loss Control (1972), duration 9:29, on RetroStrange TV1. Watch live: https://live.retrostrange.com #RSTV

Now playing: The Biography Of A Redwinged Blackbird (1946), duration 10:17, on RetroStrange TV1. Watch live: https://live.retrostrange.com #RSTV

Now playing: Bonebender's Parade (1942), duration 8:14, on RetroStrange TV1. Watch live: https://live.retrostrange.com #RSTV

Now playing: Let's Face It (1952), duration 13:29, on RetroStrange TV1. Watch live: https://live.retrostrange.com #RSTV

Now playing: Discovering Electronic Music (1970), duration 23:12, on RetroStrange TV1. Watch live: https://live.retrostrange.com #RSTV

Now playing: Fall Protection: Your Lifeline to Safety (2000), duration 11:03, on RetroStrange TV1. Watch live: https://live.retrostrange.com #RSTV

Now playing: Bee City (1951), duration 11:03, on RetroStrange TV1. Watch live: https://live.retrostrange.com #RSTV

Now playing: The Story of OSHA Part 1 (1980), duration 28:04, on RetroStrange TV1. Watch live: https://live.retrostrange.com #RSTV