I'm trying to get to this. I've been completely strict on it up till now (especially as up until we recently moved the children were regularly getting 'leisure' screen time (like watching cartoons daily) at school as well as educational) but it's starting to feel too impactful to avoid it 100% of the time. Like right now the adults want to watch the winter Olympics and the six nations, we enjoy nature documentaries and stuff like Sort Your Life Out. So, we're trying to be a bit more 90's about TV at home. We watch Gladiator's together for example, and on a day where the weather is grim or we're all knackered we put a dvd on. It feels so much more relaxed and nice. But have also found that as I've relaxed the rules the demand for more and more and more screen time has increased. We've now started to have requests for Minecraft and Xbox's. Maybe that would have happened anyway but it felt easier to hold a black and white boundary, no screen time at all is easier to understand than screen time sometimes and only certain types.
But, no tablets in the house, minimal cartoons with a short refresh rate (or flicker rate whatever it's called), DH and I trying to lead by example and leave phones at the front door. Definitely no TV before school and rarely afterwards. It's more a weekend evening, bad weather, poorly people sort of a tool. Much rather have a book and boardgame evening for as long as possible!