Prism Series Prism Series The award-winning family of mission-critical H.264 and HEVC 4K video encoders and decoders. The award-winning family of mission-critical H.264 and HEVC 4K video encoders and decoders. Explore Prism Explore Prism Prism is Teradek’s flagship encoder & decoder line. Refined over 4 generations, Prism provides secure, ultra-low latency 4K HDR streaming for video contribution,