I remember liking Voltron back when I was a kid, but I don't think it was ever properly broadcasted (not to any of the channel's I had access to) in my country. Instead we'd watch it by renting VHS tapes from the local store.
So, I only remember two episodes prominently. One is the origins story, where they tamed(?) the robot lions (and something about using rings to do it?) and the other was where apparently Voltron got destroyed and everyone seemingly died while drifting in space. I am quite sure they somehow recovered in the next episode, but I don't think I've ever watched that one.