Complex sentence: Most programming in countries such as Britain and France is in standard-definition 16:9 format (adopted in the 1990s) and is transmitted as anamorphic on digital platforms; in Germany, most television programming is in the full-screen, 1.33:1 aspect ratio.
Split into simpler sentences: Most programming in countries such as Britain and France is in standard-definition 16:9 (adopted in the 1990s) and is transmitted in anamorphic format on digital platforms. Conversely, in Germany, most television programming is in the full-screen, 1.33:1 aspect ratio.