Moin, I have a problem with my Blaupunkt TV. Namely, this only affects some channels, such as ARD, ZDF and RTL, but others do not, such as NDR and Sat1. The image size, I set to Automatic. In NDR and Sat1 there is no problem, the image can be seen on the full screen. In ARD, ZDF and RTL, however, the picture just jumps to 4: 3. Can someone help me?