I have searched for fondly remebered films from childhood tv watching and found
A movie about Cult suicide with starskey not Hutch called Attack On Fear (not available anywhere)
A short about a foriegn man locking himself in a phone Booth, La Cabina (on you tube) that made sure I always kept one foot in the door if I had to use one.
A British Transport information film about children playing olympic type games with Trains and losing limbs and their lives , The Finishing Line (available on a Dvd compilation and you tube)
Strangely it was a happy childhood
But I can not find a movie that was probably on Channel 4 with a red triangle in the 80's . The one scene I saw, was I think set in around 17th century (think three musketeers),
A man comes home to find wifey copping off with another bloke. He, I think Runs her through with a sword. Then gives the old man the option to die or chop off his own little fellow!!! which i think he does oh and everythings on fire and it's probably Foriegn language.
Did I dream this?
No trying to google this has acheived results, (even changing euphenism's) I only seem to come across john wayne bobbit!!!