Oct 01, · REVIEW: Grass Valley Indigo A/V Mixer. By Bruce A. Johnson / October 1, A Flexible, Powerful and Portable Tool. There are some names in the broadcast biz that, while not all that well known to the public, qualify as "venerable" to those who use them. This list includes Harris, Ampex, Ikegami and, without a doubt, Grass ymlp263.net: Aiwpadmin. Grass Valley’s Indigo isn’t perfect, but it provides the power and feel of more expensive systems requiring much more expensive professional video sources. The limitation of a multiple frame delay in the HD bus means that it won’t be a good choice for the future. Grass Valley is a trusted partner completely focused on empowering customers to create, control and connect content wherever, however and whenever it is consumed. In this ever-changing media landscape, content remains the most important element. Many of our customers are faced with the need to create and support new workflows while continuing to operate their legacy workflows, .