I just purchased a 70 inch LED Sharp TV ( LC-70LE650X ) for $3k from Harvey Norman (its not on their website for some reason)
If i connect the TV to my computer via VGA cable, when i watch videos, the picture sometimes dims down darker then goes lighter again. If i quit full screen mode, it doesn't happen.
If i connect computer to TV with HDMI cable, this doesn't happen at all so i don't believe its the TV?
My question is, could this be caused by the VGA cable itself? I've used it on my older 40 inch tv for years with no issues.
Id liek to use VGA as i have my computer also connected via HDMI to another HDMI only monitor and that way i dont have to swap plugs around.