It is possible they weren't ewoks, but as a kid I identified them as being the same as ewoks..
A family (husband, wife, couple of kids) crash land their spaceship on a planet. They meet friendly ewoks, but also another race of creatures which are hostile. The hostile creatures steal the power source to their spaceship, preventing them from leaving.
Most episodes were based around their unsuccessful attempts to recover their power source from the hostile creatures.
It was live action.