Google Gemini Permanent HDR Issues

Last week I decided to upgrade to C71K (Gemini) from C61K (Genie) because the Genie was having issues with a new TV, and would only output at 720p.  At first, I was impressed with the new Gemini...it was working well with my TV...until...I realized and found out that there is no way to disable HDR, even for SDR content.  

I read that there have been some past software updates that allowed for it to be turned off.  The only inconvenience was restarting the box after making the setting change.  While not 'ideal" I would rather have that option than no option.  

DIRECTV content now looks so dark...very disappointing.  I'm tempted to see if a technician will come back out and downgrade back to Genie's and see why I couldn't get mine to work at 1080p/4K with my new TV.  

DIRECTV customer service...please restore the ability to turn HDR off so content gets some brightness/pop back.