My grandparents really liked watching football games on TV when I was little and I was always amazed at how loud the referees could yell so everyone in the stadium could hear when they made a call on a play. I was kind of disappointed to learn years later it was a wireless mic that broadcast the man's voice over the sound system in the stadium. Heh.
A childhood belief about sport

others believed things like this
- I used to think that board games were called bored games because you play them when you're bored.Anon
- When I was a kid, I used to think that the only way you could play football was if you had giant shoulders.— Sam
- I used to believe the angels were in the speakers at church because of the loud female voice singing.Anon
- I used to believe that boarding school was where people went to play board games.Anon
- I used to believe that you could only play a record once, and after that all the sound was wiped off.Anon
- I had my wife convinced that Steven Hawking made his fortune as the original voice for the speak N spell toy.Anon