iPhone: Notifications are a pain because they're usually an all-or-nothing deal for apps. If you want more control over notifications, Hooks lets you manage them in very specific ways.
Hooks has over 100 different channels that you can set up notifications for, including weather alerts and TV shows. It's all set up in a very simple interface that's easy to navigate and use. Just find an alert you're interested in, tap the "Add" button, and you're all set. You don't need a bunch of different apps installed to get notifications, nor do you need to worry about being overwhelmed with information you don't want, because Hooks gives you fine-grain controls over what notifications you choose to receive.
Hooks (free) [iTunes App Store]