Many Vizio TVs will have an entire submenu called clarity. The sharpness control should be set at or close to zero. This is because the sharpness control doesn't "add" sharpness; it adds edge ...
In the Settings app, go to Accessibility > Touch > Back Tap and choose one of two options: double tap or triple tap. You should see a list of actions you can run by tapping the back of your iPhone, ...
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