Pacidal DTV DVRs (a.k.a., ccHDtv DVRs), designed for viewing, recording, and analyzing security videos in a DTV surveillance system, feature solid ability to process multiple channels of 1080p video streams, with remote access supported. Now, models to decode 4-ch, 8-ch, and 16-ch videos are available to fulfill customers' needs. Pacidal DTV DVRs are compatible with all series of Pacidal DTV cameras. Within the DTV surveillance solution, video/audio signals can be transmitted over existing coaxial cables in a current CCTV system, providing you with a seamless way to upgrade analog CCTV devices to full HD quality.