The Immersify 8K Live Streaming Demo will premiere a real-time transmission of 8K content in the immersive environment that is Deep Space 8K. The encoder and decoder functionalities that are necessary for such an ambitious streaming demonstration have been developed in the context of the European research project Immersify. Immersify partner Spin Digital is providing flexible and high-performance software 8K playback on PC platforms with the software player Spin Player, while the Advantech VEGA encoder platform and streaming via public internet complete the setup. Lastly, Deep Space 8K at the Ars Electronica Center provides an impressive media environment for the pioneering demonstration. In collaboration with NHK Technologies, a live stream will be demonstrated from Japan to Linz, and with PSNC, an 8K stream from Poznan in Poland to Deep Space 8K, each with special content.