|"Is this all real? Or has this been happening inside my head?"
The subject of this article is a real-life person, group, company, product, or creative work that has been mentioned "in-universe" in a canon source. The Harry Potter Wiki is written from the perspective that all information presented in canon is true (e.g., Hogwarts really exists), and, as such, details contained in this article may differ from real world facts.
There was a large backlit billboard advertising Samsung on Shaftesbury Avenue in London by 1997. It featured a rotating list of facts about the company, the eighteenth of which was that they produced their first television set in 1972, and were the largest television manufacturer in the world by 1997.
- Harry Potter and the Deathly Hallows: Part 1 (Mentioned on a billboard)