normicgander 0 Posted March 22, 2006 Fas- Look on the back of the DVR. There will be associated BNC connection(S) for each channel. If there are two (top and bottom) BNC connectors for each channel input, then you have loop through connections. So, simply connect the camera into the top input BNC port and conect the bottom BNC "loop out" connection to the cable connected to your TV modulator. If you only have one BNC input connection then you don't have loop through connections. Then you need the aforementioned video distribution amplifer.... Maybe someone can post a picture(s). Share this post Link to post Share on other sites