Purchased a sony KD-55KE8577 late November 2017, and a UBP-X800 Blu-Ray player,

During play back of some Blu-rays and also while watching tv through a virgin set-top-box the sound drops out for a couple of seconds, the info bar at the top of the tv screen then comes on and displays the HDMI input number the attached device name the screen pixel resolution and time, see attached picture, this happens quite often while watching tv through the set-top- box ,and  in certain scenes during dvd play back, and if I replay the scene the same thing happens every time , I have tried every combination in the sound and picture settings on the Tv and the blu-ray player, , I have tried 4 different types of high speed HDMI cables, attached three different blu-ray players to the tv and same thing happens at that same part in the film, info bar is displayed  the sound goes , I done a factory reset , had no effect,   I have played the blu-ray disc on other tv and blu-ray player combinations and the discs play fine no sound loss , is there a solution for this problem as its driving me mad ,