We have followed the meteoric rise of S3, an Ireland based group of companies which we first found building software stacks for video on phones in the DVB-H days calling itself Silicon and Software Systems. At the time it described itself as a chip designer, which also does embedded software. These days it has become an out and out TV technology firm, innovating in the test arena, and this week it has been acquired by consulting group Accenture for what we guess must be around $100 million. The cash paid for the deal was not revealed, but already it is becoming a bit of a powerhouse in TV tech, winning the contract to look after the code repository of RDK,…