Hi, Matt, It's correct both ways, but yes, the verb form leaves no doubt, and the Spanish-speaking people don't use personal pronouns much, it looks quite unnatural. It's really necessary to use them only to distinguish the subject in such cases as (Ellos/Ellas/Ustedes) miraban, for example. But if the listener knows who you're talking about, or in this case with definite verb forms, it's better not use it. Hope it's helpful, and I'll be happy to have this message corrected in turn :)