Michael Pohl, a director at Ascent Media and BigBand Networks, has joined the board of BlackArrow, a US-based provider of video advertising.

Michael Pohl, a director at Ascent Media and BigBand Networks, has joined the board of BlackArrow, a US-based provider of video advertising.

He was previously chief executive of Jinni, a search and recommendation service for video content.

In November, mobile phone company Motorola joined the investment consortium in BlackArrow to extend the company’s $20m series C round closed in April.

Motorola Ventures invested an undisclosed amount on behalf of Motorola Mobility, the mobile phone, cable set-top and broadband equipment…