This question already has an answer here:
When I was a kid in the early 80's I remember watching a tv show about a big spaceship flying through space. I think it had few episodes, and the story revolved around the lives inside the ship.
I think I remember someone having a crossbow as a weapon.
It's very vague. Does this ring a bell to someone? I'm sorry for not having further details, but I was 4 or 5 when I saw it.
Edit: The answer is effectively a duplicate but not the question, as I didn't recall so many details as the other user.