Start with the roomSoft lighting behind the screen can be more comfortable than a bright ceiling lamp. Keep reflections off the picture, put the phone aside and give the film your attention.
Keep the picture naturalTry the cinema or filmmaker picture preset before adjusting individual controls. If movement looks unusually smooth, compare the image with motion interpolation switched off.
Listen to the quiet partsDialogue matters as much as the loud scenes. Choose a comfortable volume and use subtitles when you need them. A good evening does not depend on having a complicated sound system.