Doesn’t require much complexity from the TV though.

Jokes aside, sometimes simplicity is judged on different criteria. Everyone’s favorite example is Craigslist (ugly, but actually quite simple once you grok it), but I can name a few others where the actual criteria for simplicity can be hard to define.

Bash, for example. It takes a while before you really realize what the scripting can actually do and what Unix pipes can do. Once you see it, it makes a ton of sense, but until you grok the abstractions, it's just a pile of syntactic mush you can't remember. It's simple for what it does, but the problem itself has a lot of complexity.

I believe the same thing about Vim. It requires training because while its modes become simple after you start to get it, it's an irritatingly arduous road to get there. So from the perspective of a lay user... not simple at all. From the perspective of an expert, it's effective to the point of religion.