My Vizio TV updated itself a month ago, and I only noticed because changed the default behaviour of which input to open on when it turns on, which was really irritating. After finding the menu entry to fix it, that in particular was no longer an issue.

However, around the same time, my PC input began to blank out for a second at a time at random intervals which was very irritating. On a lark I performed a factory reset and didn't set up my wifi credentials, and it hasnt misbehaved since.