Wide color Gamut Threshold

[pomkon]

i read on rtings, a tv is considered WCG if it covers 67% of rec2020. For both DCI P3 & Rec2020, there are 2 values - xy & uv. If either 1 value passes its respective threshold, I think they consider it having WCG.

 

there is this panasonic ex600 I considered before. On a french review site, the tested rec2020 coverage is only 51%. DCI P3 not tested, but I guessed its around 70-80%. Im disgusted with this low value yet they claim it supports HDR. It is an entry model, but much worse than competitors same price range TVs. Its not much better than rec709.

 

Can it really play HDR? 

 

Also what are sRGB & adobe RGB? What values are good? Why dont TV use these terms? Is there a threshold to pass to qualify monitors as WCG?