Roku tv keeps dimming randomly
Hi, I have been all over the internet searching for the answers. Before I try support I thought I should ask this community. I live in this apartment that came with the tv. I am not allowed to remove it and the landlords are not going to replace it. It is a TCL tv and I have no idea how old it is but it keeps giving me this really annoying issue where it will quickly dim and then go back to normal. It doesnt happen all the time but it happens often enough that I have no idea wether we will be able to enjoy time with the tv or not and when it starts it keeps dimming every so often that it makes movies unwatchable and games unplayable. I have been all over the settings numerous times and cannot figure out what setting has anything to do with it. At this point I wonder if any if them really do. At first, adjuating the dynamic contrast would work. And the first time I did, (turned it off) I was so relieved I thought I fixed it. Then a couple weeks later it started again. I went to the settings and the contrast was set on high. So I set it back to off. Seemed fixed. Then it happened again awhile later and this time the setting was off so I changed it to low. Seemed fixed. Next time it happened so I changed it again. It would keep happening and it seemed that all I had to do was toggle the dynamic contrast to SOMETHING and then it would be fine. Now toggling doesnt even matter at all. Now it just seems that the issue will start up randomly and go away randonly but when it starts up it will last for the entirety of whatever activity we are using the tv for. Its like a gamble now to see if it will do it when we turn the tv on or not. Sometimes its right away, sometimes its anywhere from 15 min to an hour+ in. Turning the tv off and on again has no effect. I'm just at a loss. Why ia this happening? How do I fix this? Please do not say to just get a new tv. I literally do not have the authority to do so. I just hope theres some real way to fix it. Thanks
I took a video if it but cant seem ti attach it here