Reference environment for SDR Blu-ray is Gamma 2.4 with 100 nits and D65 bias light (5-10% from dislpay 100% white and behind the TV).
Between 2007-2013 most movies are mastered with Gamma 2.2, for this movies gamma 2.2 should look better.
Cinema movies are mastered different in the studios and they use gamma 2.6 with luminance in the range 40-80 nits.
Between 2007-2013 most movies are mastered with Gamma 2.2, for this movies gamma 2.2 should look better.
Cinema movies are mastered different in the studios and they use gamma 2.6 with luminance in the range 40-80 nits.