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. The IVC 871 won the trials and subsequently became the “de facto” standard for education broadcast networks in Britain and most of Northern Europe. Other important milestones were choice by the Royal Aircraft Research Establishment for a large number of MOD instrumentation projects, and choice by British Aircraft Corporation for monitoring multiple performance factors on the development models of the supersonic Concorde. In all of the competitive trials leading to multiple sales, the IVC800's 5.0 MHz bandwidth and high S/N ratio were unbeatable in 1” VTRs at that time.