By (user no longer on site)
over a year ago
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"Sound travels faster that light.........
I'm guessing this was a genuine typo as, previously mentioned, it is of course the other way around.
However, this is only outside of any intervention where electronics are not involved.
If you are watching and listening live, either by TV or even at a live concert, through the PA system, the part that can't be influenced is the distances between the lips and the microphone, and between the speakers and your ears which, generally speaking is so small, the differences in time to travel those distances is so minimal to be of any perceivable significance.
The electronic signal (at the concert it is sound and on TV it is both sound and vision) also travel at the speed of light(near enough) but do become subject to delays due to the actual electronics themselves.
For TV and satellite both audio and visual signals are separated and can be (and should be) electronically synchronised although there are many instances where the broadcaster just doesn't seem to want to bother.
Although, as previously stated, there are inevitable delays between each end of the transmission due to the fact it is roughly 72,000 Km via satellite there and back, the audio and video should remain in sync as both signal travel at the same speed.
'Simple physics really'