Say you have a nice collection of media on your PC in one room, but you’d like to be able to view it on your nice big TV in another room. Windows offers a simple way to do that over Wi-Fi.
There’s actually an open standard for sharing media files across a home network. It’s called the Digital Living Network Alliance (DLNA), and you probably already have everything you need to use it. There’s also a second, and newer, standard called Miracast that will be of particular note to Windows 10 users.
First, some definitions for DLNA: The device that sends the stream—such as a PC—is the DLNA server. The device that receives the stream—such as an HDTV or something connected to the TV—is the DLNA renderer (I really hate that term; player or receiver would be much friendlier). Both devices must be on the same network.