1. Yes. Beware that some monitors do not suppport 1080i well, and some monitors display no picture at all when using 50Hz. For those cases, use the front panel to set the Video Output Format to be 1080p/50 or 1080p/60. You may also try setting Image Mode to Dynamic (for every channel) if you find that black becomes grey.
3. HDCP 1.4 and non-HDCP displays can be connected to MTV9x00 for TV and playback of recorded programmes. HDCP 1.4 allows 1080p not 4K. Netflix 4K requires HDCP 2.2. Without HDCP, Netflix will not work.