With a campus of 55 buildings containing over 420 AV-equipped and over 1,000 university-owned PCs, Middle Tennessee State University found it difficult for technology support staff to respond in person to numerous requests for help, many of which were simple problems. So MTSU s AV control system programmers developed an AV user interface for their Extron TouchLink Pro touch panels to take care of routine AV system operation and minor troubleshooting.