Joanne uses a TCL TV as her PC monitor. But now it's starting to look really pixelated. What gives? Leo says that the TV settings are confusing the computer and she's getting a lower resolution. This is a handshake issue with the HDMI connection. It's one of the reasons why Leo doesn't recommend using a TV as a monitor. Try a different HDMI port first. Or a different cable. The cable could be worn out. Both are easy things to check first. She can also try CTRL-SHIFT-WINDOWS KEY-B, which will reset the display screen video driver. Read more about it here.