In this video, I showed you what happens if you use 2 different versions of Nintendo Channel for Wii on Dolphin Emulator.

The old Nintendo Channel gives you a error saying that the Wii system memory is damaged and press the A button to go back to the Wii Menu after you completed the first time settings and you can read the operations manual without going to the Wii Shop Channel. The save data takes up 126 blocks and channel takes up 123 blocks.

The latest version of Nintendo Channel has the operations guide on how to use the controls and you need to go to the Wii Shop Channel to view more details. After you complete the first time settings, it will give you an error saying that Nintendo Channel save data is corrupted and it doesn't make you press the A button or any other button to go back to the Wii Menu. The save data takes up only 11 blocks and only channel takes up 103 blocks.