TESH started as a spin-off by the 2 VJ's Treseyes and Serious Hare. They were both looking for a way to do more with visuals, than just mixing videoclips. Both still on there own, they started to experiment with new techniques. Doing so, Treseyes started to focus on 3D-Mapping, still using video clips, and VJ-techniques. Serious Hare started off in an other direction. He did some mapping aswell, but mostly put his focus on Live Generated Visuals, stopping entirely with the use of video clips in his work. Soon after that they had a chance to do a show together, and there was TESH.
After they got together, and combined there specialties. They started to put together bigger shows, that used both 3D mapping aswell as Live Generated Visuals. This brought Stages to live, made DJ-Booths and Speakers move along with the music, and gives you and the audiance, a change to interact.