You will need a 4K Ultra HD™ television set with HDR, an Ultra HD Blu-ray™ player or other 4K Ultra HD media device, and an HDMI 2.0 cable (recommended minimum of 18gb/s; it should say this on the package) to connect your device to your TV.
In addition, you may want to add a 5.1.4, 7.1.2 or 7.1.4 home audio setup with a receiver that can handle Dolby Atmos and/or DTS:X to experience the full Immersive Audio tracks included with most 4K Ultra HD movies.