Three. One in the living room, one in the guest bedroom downstairs (we also move this one outside to the patio for ballgames, etc. since we have a wireless DirecTV box for it) and the old 50" plasma that used to be the living room TV got moved to our bedroom. Only one that really ever gets used is the living room TV. Bedroom TV is on some mornings with the news playing in the background while we're getting ready and every once in a while we will finish watching a late football game or something like that upstairs.
I've wanted to cut the cord for years. I think I even started the "cut the cord" thread in this forum about 4 years ago, but I've still never found an acceptable overall solution. Either streaming packages don't have all the sports you can easily get with cable/DirecTV/Dish, or they just technically don't cut it for me. I tried DirecTV now in order to get the free AppleTV 4K unit, but it still won't pass surround sound through for shows. You can get some on-demand content in surround, but when streaming it is stereo only. That is an issue on a lot of streaming services, along with limited resolution, so I just still pay DirecTV for now. We are at about 150 a month for DirecTV, 4K HDR DVR setup for whole home with one wireless box and HBO.