@Ptrhys Andre Bryant: Can you try unplugging the TV at the wall for 30 seconds, then plug it back in and power on with the remote to see if this helps? If not, can you confirm if the issue is present on all channels and sources?
I have experienced the same problem in my TV with barely more than 2 years. It's a really convenient timing, warranty just expired 2 months ago. This was my first Samsung TV and the last for sure. This is a well known production defect from Samsung but no responsibilities were assumed by the brand. Better stay away from it.
@Ptrhys Andre Bryant: if the issue is persistent, and is visible in the Picture Test sample image via Settings > Support > Self Diagnosis > Picture Test, then please reach out to an authorised Service Centre to arrange an out of warranty inspection. To find your nearest one please follow the link below, select TV & AV > Television, and enter your post code. I apologise for any inconvenience this may cause you.