I have a problem in that the HD channels on Freesat are great but on normal channels such as 101 or 103 (not HD) then the image self-zooms in about 10%. Strangely during the adverts, the picture zooms back out and look's great which is very wrong and normally are worse than the actual programme. After the ad break, the picture zooms back in again for the programme. This cuts off some of the screen and information and cuts into the channel logo (top left corner) and magnifies the rasterisation/ interference. I cannot get the tv to zoom out to normal - I have tried, I have been to settings > picture> custom > zoom and attempted to zoom out but it goes nowhere. I can zoom in but not out past where it is. This problem is on both 16:9 and 4:3 ratios. Bit disappointed to be honest with you. If there is anyone who can help or give suggestions I appreciate your support.
My TV is SAMSUNG UE40MU6470U