When watching streamed video over the Internet consumers are annoyed by disturbances in service quality. In the delivery chain live video content is streamed by a content provider through the network of an Internet Service Provider (ISP) to the consumer's home network, and then shown on a PC. Should a consumer experience reduced quality a variety of reasons can apply along the entire delivery chain. Monitoring service quality can help to identify the reasons for reduced quality.In an assessment process a test panel have evaluated video content streamed under various conditions. The MOVIS project identified what to measure, including thresholds and weight factors in order to estimate the experienced quality for the consumer. The results have been implemented in a prototype for measuring and estimating video quality.