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 ...
You can also change the time using the xset s [value] command, where [value] is the time in seconds. The default value is 600 ...
Anthea Levi is a registered dietitian (RD) and reporter with more than 6 years of experience writing for major health outlets including Health magazine, BuzzFeed, Eat This, Not That!, and Livestrong.