Twitch TV is an online service which helps you broadcast streams from various devices you have. A username and password is required so you can use the service but that is easy to obtain because the service is free to all users. In order to broadcast, you will need the streaming applications supported by the service which in this case you can use Xplit, Wirecast or Flash Media Encoder. If you plan to use any one of them, you will notice that configuring is extremely simple. When you start any application, a tutorial and a wizard will accurately guide you to create a successful live broadcast. You can use your DVR camera as a input source for the stream. Almost anything that is connectable to the PC is supported by these applications.