Watch the show I guess. But I will tell you he's not as common after his first batch of episodes. Some heroes get clusters of episodes centered around them like Zatanna and Booster Gold and then don't have the same level of presence outside that cluster. I think the first four eps are considered his cluster. So if you don't find enjoyment in watching the show for its own sake then you might not find it worth watching. If it helps, I think he is in the recent Christmas episode Party Animal which is in the mega posted in the thread. But don't hold me to that.