So I've recently brought a new 4k TV and I'm having trouble with the AV input I'm using the cable provided trying to set up a nintendo game cube but the picture is overly bright, I have adjusted all the settings on the TV and can't seem to get the the picture any better.
Has anyone else had the same problem and of so have you managed to sort it at all?
Thanks 
Which cable are you using to make the connection, @Forever616527? Are you able to try a different cable?
