Because streaming video might be harmed by flaws introduced during recording, encoding, packing, or transmission, most subscription video services, such as Amazon Prime Video, monitor the quality of the content they stream regularly. Manual content review, often known as eyes-on-glass testing, doesn't scale well and comes with its own set of issues, such as discrepancies in reviewers' quality judgments. The use of digital signal processing to detect anomalies in the video signal, which are typically associated with faults, is becoming more popular in the business. To validate new program releases or offline modifications to encoding profiles, Prime Video's Video Quality Analysis (VQA) division began employing machine learning three years ago to discover faults in collected footage from devices such as consoles, TVs, and set-top boxes. More recently, Amazon has used the same techniques to solve problems like real-time quality monitoring of our thousands of channels and live events, as well as large-scale content analysis.