Joseph,
“Nitwit”? I must have really hit a nerve if you’re resorting to pejoratives!
We do not determine the homes our children visit based primarily upon whether they have TV or unfiltered internet (which we do not). We do so based primarily upon our familiarity with the parents and the home they have built. There are homes that have TV with parents who genuinely respect the fact that we don’t and keep it off. There are homes that don’t have TV which we will never let our children visit.
You seem to be focused on “regulating” your children. In reality, the most effective method of parenting is to be the kind of person you want your children to emulate. Regardless, you mentioned the Rambam and Mechaber and still didn’t answer the question. How often do you let your isha out of the house? Do you also regulate her?