Imagine a system that unlocks the doors and turns on the lights when your adolescent son arrives home and doesn’t allow him to watch anything on the TV until after he watches an educational video and notifies you at your office when he’s completed it. A well-funded and pedigreed startup company hopes to bring such a smart-home vision closer to reality. Texas-based Prodea on Tuesday is set to announce that it’s now offering technology it calls the “Residential Operating System” here in the United States.