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I have a Bravia TV and trying to connect an NVR to it with HDMI cable. There are no HDMI ports showing in any of the menus?
The first thing you should when asking for advice is to include the full model number of your Sony TV.
What is an NVR?
My Sony TV HDMI port settings are reached via Settings> Channel & Inputs> External Inputs.
Your TV may be something similar.
Best give us a full detailed description of your problem and what you want to achieve, we can't read your mind.
Network Video Recorder?
On which device are none of the HDMI ports showing?