Harmonic, as one of the longstanding dedicated video infrastructure providers, has been struggling for air for several years now as its rivals have either consolidated or been acquired by larger general networking players such as Ericsson, Cisco or Nokia. Revenues have been bumping around $400 million a year since 2014, sagging if anything, while profits have at times been minimal. Yet the company has continued on a commendable journey of innovation inspired by internal evangelists, and this has sustained hopes of an elusive return to growth. The firm has established a leadership role in Ultra HD standards developments and in streaming technologies without as yet gaining much return for that investment. However, there was a slight uptick in its Q4…