Para que te pille bien el brillo recuerda desconectar el sensor de luz, en opciones Eco, ya que con eso apagado podrás poner el brillo a tu gusto.
Esta la utilizo yo de base, aunque la luz de fondo la he subido y la temperatura de la imagen la tengo en cálido 1 o neutro
lo he sacado de aquí
https://www.avforums.com/threads/son...tings.1897080/
Scene Select: Cinema
Picture Mode: Cinema 1
Backlight: 2 (Make sure you turn the Light Sensor off in System Settings/Eco)
Contrast: 90
Brightness: 50
Colour: 54
Hue: 0
Colour Temperature: Warm 2
Sharpness: 50
Noise Reduction: Off
MPEG Noise Reduction: Off
Dot Noise Reduction: Off
Reality Creation: Personal Preference
Smooth Gradation: Off
Motionflow: True Cinema (with 24p content)
Film Mode: Auto
Advanced Settings
Black Corrector: Off
Advanced Contrast Enhancer: Mid
Gamma: -2
Auto Light Limiter: Off
Clear White: Off
Live Colour: Off
White Balance: Red Gain 0, Green Gain -1, Blue Gain 0, Red Cutoff 0, Green Cutoff 0, Blue Cutoff 0
Detail Enhancer: Off
Edge Enhancer: Off
Skin Naturaliser: Off
Espero que te sirva
Salu2.