Comment Re:There isn't any... (Score 1) 81
Based on what I get on my TV when I press the Mute button, they really shouldn't be...
Most of the time when you view closed captions, it is typed up, not automatically transcribed by a computer program - link
Further, for live events, it is typically typed live by a stenographer which yields the inherent delay
As for errors, I personally have mostly seen errors when I'm watching over the air and the reception isn't very clear (though I don't often use closed captioning so my sample size is limited)