Control the room
Light hitting the screen washes out the picture. Blackout shades and dimmable lights give you control.
Bias lighting
A soft light behind the screen reduces eye strain and improves perceived contrast.
Dim in stages
Lights that fade smoothly feel more like a theater. Scenes can dim lights when you press play.
Shades
Motorized blackout shades close with the same button that starts the movie.
Make it one button
Put it all in a Movie scene so lights, shades and the TV respond together.