If you haven't tried to use a VGA cable to connect recorder to monitor or TV yet, please try with VGA cable check if you can see image first.
If you can see image on monitor with VGA cable but no image on TV with HDMI cable, please refer to these ways to have a try.
1.Please make sure your TV is in HDMI mode, not VGA mode or BNC mode. Please adjust the monitor signal input to correct model.
2. Please go to "Main Menu"-"System"-"Display" to adjusting the resolution to "1920*1080". If you can have the setting page from you HDMI.
3. If not, Please change another HDMI cable.
4.If still not, change another HD TV to have a try if you can.
5.Finally, Please restore system to factory default.