Not fully on topic but man do I still love (and use) Teletext on a daily basis. There are many things we (designers) can learn from it. The more stuff you can display the more you have to resist the temptation to do so. Early tech radically forced you to find creative ways to get to the core of what you were trying to achieve. Now with the abundance of memory and visual capabilities, nobody is carefully making choices anymore. Turning every UI into an overkill experience.
It’s something I try to push for when crafting new designs for startups at our firm.