Everyone should at least once a month totally unplug ALL TVs, devices, routers, and modems for an extended period of time (minimum 20-30 minutes). I try to remember to do this once a week. This allows all your devices to 100% reset!
An easy way to do this is plug everything into a power strip and plug the power strip into an outlet that is controlled by a wall switch or use a smart plug which can be controlled by an app or your phone or tablet.
When you leave the house for a period time and no one else will be home is a good time to do this and a good habit to pick up.
Personally, I like using smart plugs for this procedure. If I forget to flip the switch or unplug the devices, I can easily open up the app on my phone and deactivate that plug from anywhere.
(36) How to set up and use a smart plug - YouTube