Time Dilation

[Rosencrantz]

Really, I think those delays are more due to system processing rather than signal transmission. Anything that's wireless uses some sort of radio spectra, and radio is electromagnetic radiation (aka. light), so those signals are definitely moving at the speed of light. The delay probably comes in because a) the transmitters from on-site cameras and microphones need to convert and transmit everything to a radio wavelength tansmission, b) the satellites collecting the transmissions need to process then redirect the transmissions to an off-site receiver, and c) the receiver has to convert everything back to a readable audio/video format for the news stations to interpret. All of that does take quite a bit of computing to make work.