Is there a difference between Altice and Optimum?

Excuse me, could you please elaborate on the differences, if any, between Altice and Optimum? I've heard they are somehow related, but I'm not entirely sure how they differ from each other. Could you provide some insights into their services, coverage, or any other distinguishing factors that set them apart? I'm particularly interested in understanding how customers might choose between the two based on their specific needs and preferences. Thank you.