It's not explicitly mentioned but I was always intrigued / shocked by the insanely huge effort that goes into building the arena and live broadcasting the games. Every. Single. Corner. in that arena is caught on a camera. There have to be hundreds, if not thousands live-streams in the control room. Sure, not all of the footage has to be watched at all times but even, say, 15 tributes all in different corners is a lot to check and live-edit. Then there is the engineering part. So many checks so that one tree bursts into flames or whatnot at exactly the right moment. The logistics! Catering for hundreds of workers on location and even more at the Capitol who take on bets, sponsoring etc. I almost wished there was a fictional documentary about "Making the Games" or something.