 The company was a substantial business in both the US and the UK with high tech headquarters at Sunnyvale in the California silicon valley, and at Reading England in the Thames Valley equivalent.Major sales breakthroughs against competition came in 1968 when joint technical trials were held in London by the Inner London Education TV service and The University of London TV service.Both services were mandated to run with full broadcast standards, and were both headed by ex ITV Chief Engineers.