Experimenting around with RTSP to get live feed to 4 different end users. I have a few Hikvision DS-96128NI-I24 / H that I want to use rasp pi's and VLC with. My question is, do I have to have a monitor connected to the HDMI port in order for Channel Zero to work? So far that's the only way I've been able to get live feed by using rtsp:/usernameassword@192.168.x.xxx:xxx/Streaming/Channels/1, otherwise it just shows a black screen when there is no monitor connected. Also does RTSP use less bandwidth than http?