Try changing the resolution from 1080i to 1080p or viceversa.
Change your cable
Check hdmi cable as well
It's only been happening since this morning. We're not sure why.
Maybe PIP?
Seems more of a box issue , try reconnecting all cables and check.
Yeah that's what I was thinking. I heard these are decent, cheap OLED panels. Do you like your Skyworth TV?
Uncheck match resolution in display options. There is a problem with that channel and your box is switching resolutions to try tonmatch the channel.