Re: We'll get there yet
The only question is whether anyone will still remember analog TV snow when we do.
What I've always found interesting about that line is that the digital television sets I've seen all display a blue screen when there's no input signal. So a reader who's familiar with analog sets and assumes one will picture a cloudy sky, while one who only knows digital sets will presumably picture a clear one.
Gibson's weather imagery is a function of the age of the reader, to a first approximation.