The concept being of producing local interactivity without the need for a return information link to a central computer.
[2] Software bytes are presented to a terminal as pairs of standard teletext characters, thus utilizing an existing and well-proven broadcasting system.
At the 1978 International Broadcasting Convention a demonstration of telesoftware working from a live feed of ITV Oracle teletext was presented on an exhibition stand by Mr Hedger.
Also, a display maquette, with the title Telesoftware Tennis had been broadcast live for a few minutes on ITV Oracle in November or December 1976.
[9] Although none of the early telesoftware initiatives survived,[9] many of the techniques are now at the heart of the latest digital television systems.