TiVo Roamio Over-The-Air 500 GB DVR and Streaming Media Player - No Monthly Service Fees - Not Compatible with Cable Designed for users who watch TV with an HD antenna instead of subscribing to cable. Enjoy network shows from ABC, CBS, NBC, FOX, PBS, Univision and more Includes Product Lifetime Service. HD antenna sold separately. Record four shows at once and up to 75 HD hours of programming with its 500GB drive Access TV and streaming content from Netflix, Hulu Plus, VUDU and more without switching inputs See 14-day program guide and schedule recordings ahead of time. Customize your recording experience with One Pass "OTA"-users gets TV signal "Over the Air" rather than subscription to digital cable.Power: 12V