When mirroring from my MBP to TV via HDMI cable the colour sometimes gets distorted. It seems that one of the RBG colour components is lost (example yellow goes red, blue goes green) and it makes the screen unwatchable. It reverts back if I remove the cable and reinsert it. I have the HDMI connected directly into the HDMI port on the MBP and have changed the cable but still the same result. Any ideas on how to resolve this ?