Best display profile for calibrated TV

I have a CMS calibrated 4K TV, now happy at REC709 with a 2.2 gamma. This TV is hooked up to my Windows Media Center PC, but the CMS calibration is spot on for built in streaming apps, USB playback, hooking up a Blu-ray player etc.

I would like to know what the proper display profile would be on my MacOS Sierra MBP, so that it is squirting out whatever an uncalibrated PC or HDMI source would be, so I can use it as my playback monitor in FCPX. I already have a custom REC709 profile using an X-Rite i1D3, but when you attach the secondary HDMI screen, it allows for an independent profile for that output. I tried last year to make a custom profile for the TV with a Spyder calibrator, but it locked the Macbook into an unbootable state if I didn't change the profile before it switched back to the built in display, had to boot into recovery to correct!

So, generic RGB profile? sRGB IEC61966-2.1? What should I use?

Paul

I was eventually able to figure this out...I believe. So for anyone searching who has a similar question...

I went into the Windows Color System menu, and found a selector for ICC profiles. Default was set to sRGB IEC 61966-2-1. MacOS Sierra has a selection listed as sRGB IEC61966-2.1. I am going to assume that is meant to match Windows..it does have the same ugly purple hue when selected, but for any monitors calibrated to match a stock Windows PC HDMI output, it should do just fine.

One question I will need to answer involves someone informaing me that the display profile selected in MacOS, will alter the color space of exported FCPX projects...

Paul