The video you linked to says that the footage was spliced together from a 2006 documentary aired by PBS, here’s a summary
The Incident: On June 5, 1989, a day after the Chinese army violently suppressed pro-democracy demonstrations in Tiananmen Square, an unarmed man, later known as “Tank Man,” stood his ground in front of a line of tanks on the Avenue of Eternal Peace.
Iconic Image: Captured by Western journalists, this image became a powerful symbol of defiance and the struggle for freedom worldwide.
Documentary’s Focus: The FRONTLINE documentary, “The Tank Man,” explores the events surrounding the Tiananmen Square protests, the identity of “Tank Man,” and the significance of his act of defiance. Filmmaker’s Investigation:
I’ll be honest… Not very well. Pretty much squeeze my loofa at the top of my back so the suds run down, then rinse. No backne or any other issues though