This is just a heads up for all of you out there who enjoy weird things like “using and playing with their Playstation 4.” Sony has announced some scheduled maintenance for tonight at 6:30 – 8:30 PM EST. Users will still be able to sign in to the PSN, play their games and apps. Account Management, PlayStation Video, and PlayStation Store, however will be down. So if you need to download something get to it quick. Sony has also highly recommended setting your PS4 as your Primary PS4. Without doing this you may not be able to play any downloaded games and content. Fortunately they have you covered.
To activate as your primary console, sign in to your PlayStation™Network profile and select [Settings] > [PlayStation™Network/Account Management] > [Activate as Your Primary PS4] > [Activate]. You only need to do this once.
If you are reading this during the downtime and were unprepared for this then perhaps you could entertain yourself with a few of our amazing youtube videos. We are in the process of throwing a beta bash!
See you there!
Source: Playstation Forums