Help getting started with Roku devices, including setup, connecting your device to your TV, linking a Roku device to your account at my.roku.com/link, adding channels, subscribing to services, and more.
Can you please provide more information about what you are seeing? Is there a light on your Roku device? How are you powering the Roku device? Have you tried using another HDMI port or switching out the HDMI cable used to connect the device?
With more information we will be able to assist you further.