I'm very sorry to hear that has happened. In order for me to help you most accurately, please provide the complete model code for this device. This will help us look into the issue further to determine if the remote or the TV is at fault.
This morning I tried watching a dvd and what i usually do is press the remote for the dvd player and my tv opens up with it. So when I opened it today, the 'disconnecting any net device' window pops up and it's stuck there, so I tried turning the dvd player off then my tv suddenly started switching channels on it's own I tried my remotes the source buttons none of them worked I also noticed the red light in the bottom right corner keeps blinking, after a few presses on the power button at the side of the tv, it switches off. I panicked for a bit and decide to wait a few minutes then I tried turning it on the same way I did before and it works fine, I switch to dvmi mode to watch tv, after a few minutes it looked fine and when I suddenly left the room it went back to switching channels again, none of my remotes worked and now it's stuck to switching channels again no matter how many times I turn it off. I'm really worried, did I do something wrong to cause this? Is there anything I can do fix it? Please help! P.S. I'm not so sure about the model cause it's my dad's tv I'll try to look for it as soon as I talk to him.