TiVo BOLT 2TB Unified Entertainment System - DVR and Streaming Media Player TiVo service is required and is sold separately. Instructions for purchasing service are included with the TiVo. Works with existing cable or HD antennas to records 4 shows at once with 2 TB recording capacity Fully 4K/UHD compatible - Streams and downloads to mobile devices in the home Skip Mode skips commercial breaks at the press of a button, Quick Mode plays back recorded shows 30% faster WeaKnees is an Authorized TiVo Reseller.