Thomson has sold the 2,500th unit of its Thomson Grass Valley Kayak switcher.

The milestone deal was for a Kayak HD 2.5 M/E (mix/effects) system that was delivered to US-based horse-racing producer Keeneland.

The Grass Valley Kayak HD digital video production switcher operates in both SD and HD and is used by a number of studios and outside broadcast facilities in the UK including 3Sixty Media and CTV.