These channels are part of my childhood memories. I would scour through the content in these channels every Friday night after school.
Furthermore, they illustrate Nintendo's capability in creating engaging UI/UX. Before iPhone apps became prevalent, Nintendo was able to design simple, pleasing UI with their own Nintendo personality. Unlike apps nowadays, the accompanying music was memorable; Wii Shopping Channel music remains popular on YouTube recommendation algorithms. Despite the rise of smart TVs later, they still haven't captured the magic one would feel touching a Nintendo Wii Channel. UI designers can learn much from engaging with them.