Sat down to have lunch turned TV and HDR on to find the picture had an overall red hue and no sound. My cleaning lady had been in, so no idea what she’s done. I’ve got the picture to the correct colours (I guess she’d hit the source button by accident) but still can’t get the sound. I’ve tried the obvious (to me) by checking volumes on both remotes and the mute buttons, now at a loss and would appreciate thoughts, thankyou.