Set up a large structure of categories and sub categories

I need a high quality structure of categories and sub categories, covering virtually every topic that anyone would write about in the news or in blogs. The end result should be something like a 100 categories with tens of thousands of sub categories. Examples of categories: TV Shows, Programming languages, Hardware, Politicians, Disasters, Countries, Celebrities, Universities Subcategories for each would be a long list of all significant examples within that category. For TV shows it would have to be the 200 most popular tv shows. For programming, it would entail all popular programming languages (around 50). For Countries it would include all countries that have existed, including those that no longer exist (like USSR). Categories and sub categories should not overlap with each other. For example, there should not be a category for "Celebrities" and another one for "Movie stars", as these would surely overlap. Naturally, all categories and sub categories must be spelled and cased correctly. The suggested categories must be provided in Excel format for further discussion. The end result must be a large text file in this format: - category subcategory 1 subcategory 2 subcategory 3 - another category another sub category yet another etc.