I hear this all the time and it’s very subjective - I would argue the second largest is the US Army Aviation Branch - if you count helicopters have a lot more aircraft than the US Navy.
Also the Russian Air Force has more aircraft than the US Navy per most sources. I suspect the internet meme got the Navy and Army Aviation swapped around.
Magnavox Odyssey, Atari Home Pong, Coleco Telstar - that sort of thing. Mostly with built in games.