Re: Speed of light
I usually take a small Roberts Test Match Special radio when I go to a test match. TMS fills in gaps without any noticeable delay.
One time I mistakenly took a small DAB radio instead of the trusty Roberts. An example to highlight the delay: the batsmen were just starting their return run when the radio had the sound of the ball on bat before they even started their first run.
Icon - because that's what you have during a match.