 During this period of rapid digital development, Harrison still continued to produce analog consoles (often with some digital elements) such as the AIR 790/PRO 790 broadcast and production consoles, AP-100 on-air production console, the MR-20 music console, the industry workhorse TV-950 and Pro-950 production consoles, and finally the TV5.1 surround-capable broadcast console.In 1985 Harrison introduced its SeriesTen, the world's first digitally controlled analog mixer with console automation.The SeriesTen used only 3 knobs above each channel strip to "page" between various functions of the console.