Question about Xiaomi TV Box S 4K (2nd Gen)

The use of Sky Show via the box depends on whether Sky Show offers an app for Android TV that can be installed on the box. Since the box supports Android TV, you could use Sky Show if there is a corresponding app. Unfortunately, I don't have any specific information on whether Sky Show is available directly on this box. You could try installing the app via the Google Play Store if it is available.