This year's controversial and disrupted Olympic Games have now concluded - and as the BBC finishes its coverage, the broadcaster has given viewers a tour behind the scenes of its virtual studio.
Fortnite gets a namecheck in the explainer video below, hosted by the BBC's Dan Walker and Sam Quek, as it's revealed how everything except the presenters' chairs and table was a creation of Unreal Engine.
Unreal Engine is commonly used in film and TV production either to create virtual studios or surroundings, or to mock up in real-time how an effects-based shot might look with live-action actors in frame.
I knew all this and still, I admit, I hadn't realised the extent to which this studio I've seen a lot of over the past month never really existed. I'm also sad the virtual fish weren't real and no one snuck in a Fishstick Easter egg.
Of course, it makes sense the BBC did not go to Tokyo right now. Also, it avoided a repeat of a certain on-air incident during Dan Walker's trip to Rio.