Hdhub4u 6 Underground

| Platform | Video Quality | Offline Download | Cost | | :--- | :--- | :--- | :--- | | | 4K Ultra HD / Dolby Vision | Yes (Official app) | Included in subscription | | Amazon Prime Video (Purchase) | HD / 4K | Yes (via Prime Video app) | $14.99 to buy | | Apple TV / iTunes | 4K Dolby Atmos | Yes | $14.99 |