Bearhugs

That was Knight Rider! You're talking about the Barbarian Brothers. They were body building twins Peter and David Paul.

Are they the same twins who appeared together as twins where they were kidnapped as kids, but brought up separately. They met later & didn't recognise each other & had to fight, but suddenly recognised each. It was set in 'pre historic' times somewhere? There are some good fight scenes & an arm wrestling sequence in it. They went after the baddie who kidnapped them & I think who had killed their father or mother.

You got it!

I don't remember if it was CHIPS or NightRider, but there was an episode where two muscle monsters crushed a couple of people. Anyone have a clue what I'm thinking of or, better yet, a link?

Sounds like it could have been the last episode of Chips. I wondered what happened to them, now I know. ...lol
2 muscle monsters crushing each other would be better.
Shame you're the other side of the world - I'd love to role play it with you.