Most BlackBerry phones have a flashing light that blinks when an e-mail comes in, and a built-in option to filter alerts so that you only receive them from contacts you prioritise.
You can filter out the channels you don't receive or only show your favorites though, and while you can easily go straight to any time you'd like, there's no shortcuts to prime time, the time when new shows usually come on.
Then it reaches to institutional and individual investors who may receive the information instantly, but act with a delay, as they carefully filter the news to determine whether it carries a meaningful message or is just noise (the early and late majorities in Rogers curve).