In the mid 1970's when I lived in Red Hook, NY, one night I picked up a very snowy UHF TV station (WMHT) from Schenectady some 60-70 miles away. The ÂThe Ascent of Man was on and I was captured. I acquired a UHF antenna and mounted it just below the rotor holding the VHF antenna. Eventually, I became a supporter of that PBS station.
ÂThe Ascent of Man is Bronowski's book, but also a PBS TV series. The cited YouTube clip is the last scene of the final episode.
Your public library may have the VCR tapes of ÂThe Ascent of Man PBS series.