I was a hairy, and I can remember when that documentary was first on television. Was still at school at the time. Must have been 1971. (Is there a production date on your copy, HTT?) Some of it seemed pretty far-fetched at the time -- sawn-off shotguns and so on -- and I remember it going on about the Gay Trooper (under what was then the Swallow Hotel on Newgate Street) as an enclave of highly dangerous hairies. I knew the Gay Trooper as one of the few underage drinking pubs in town, and while it wasn't a place skinheeds would ever venture into, I don't remember it feeling in the least bit menacing. It was a place for 15-year-olds to drink lager and lime before going to a concert at the Mayfair.
I knew some of the local skins from school, and, if we met one-on-one, relations were usually friendly. The problem was when you ran into a pack of them. Hairies mostly didn't form gangs, but skinheeds did, and yeah, as someone said above, there was one in every district.
I grew up in South Gosforth, which was home of the rather pathetic South Gosforth Mafia. The nearby Longbenton Aggro Boys ("LBAB" was felt-penned all over the place, until they changed their name to the Longbenton Clockwork) were a lot more serious and had to be avoided. My friends and I got jumped more than once while wandering around at night. We'd be in twos and threes, but there would always be f***ing loads of them. One time I remember hopping over a gate and hiding in a garden on Church Road while a seemingly endless line of skinheeds tramped along the pavement on the other side of the hedge. Another time I got a knife in the stomach, although I was lucky -- it was just a small blade and the t*** missed; I didn't get much more than a graze across my ribs.
Skins tended to like reggae (Jimmy Cliff, Judge Dread) and a bit of soul (Ike and Tina Turner); hairies were mostly into rock music (Who, Led Zep, Deep Purple, Sabbath, Groundhogs). Skins wore harrington jackets or crombie coats, gingham Ben Sherman shirts, Levi's Sta-Prest, Doc Martens, and after Clockwork Orange they also started wearing bowler hats and sometimes carrying umbrellas with a sharpened point. Hairies never looked so smart: Levi or Wrangler denim or cord jackets, greatcoats in winter, Ben Sherman (though never gingham -- I had a striped one) or Wrangler (denim or check) shirts, Levi or Wrangler jeans, or Sta-Prest, and what we used to call "riding boots" or "riders", usually brown or oxblood. "Skaries" were the harder hairies -- hair long at the sides, but cropped short on top.