I have a Bravia KDL-46V4100. Recently the screen randomly flashes white while playing on a PS4. All the software is up to date. I've tried different HDMI ports and cables. I've had the TV since 2009 and PS4 since 2014. I have not noticed if this happens using the TV antenna. Any ideas on if this is the TV or PS4? Is there any way I can fix it?