Tektronix's Sentry digital content monitor has been selected by Cogeco Cable, Canada's fourth largest cable operator, to monitor its video services. Cogeco Cable will deploy Sentry's QoE and Perceptive Video Quality (PVQ) modules initially in its master headend, where the it will monitor SD and HD programming throughout the company's Ontario systems. Cogeco Cable will configure and manage its Sentry units using Tektronix Medius application.