Yep, watched it as a kid, and enjoyed it a lot at the time. "Green and Blue" was quite a scary episode as a school kid, and I'm sure I remember some schools ending up banning blue and green badges for a while
The tomorrow people weren't superheroes as such, they were 'the next generation' of humanity - people with a small degree of telepathy, teleportation and telekinesis (The belts were there to help them 'jaunt' over longer distances, but it was a natural ability).
One of the key elements was that proto-tomorrow people tended to 'break out' in their teens - the point when telepathy suddenly hits them, and it was a traumatic time.
Many of the adventures seem to be about agencies or groups who were trying to capture them and use them for their own ends, while the team were trying to find and help other kids who were breaking out.
One agency had a drug which suppressed their abilities when injected.
They didn't have a code which prevented them from hurting people - they literally, physiologically, couldn't bring themselves to hurt someone.
...You do realise I'm going back over 30 years for these memories, don't you?
I've found a site here that probably helps
http://www.clivebanks.co.uk/TP Timeline.htm