In two other positions with this particular "jugular model" (keep OJ away from her!), the pulsations were not visible enough to make a compelling video image, emphasizing the finicky nature of the pulsations, the need to position the patient correctly to see them, and the general difficulty of confidently and accurately identifying the pulsations during a cardiac examination which is all too often cursory and unreliable in its findings.
The key feature of the JVP, to differentiate it from the carotid arterial pulsations is to watch to see if the most prominent feature of the "waves" is a rapid descent or a rapid ascent. In the former case, as in the video, it is the venous X and Y descents of the venous A and V waves which are most obviously seen. All too often, the rapid ascending waves of the carotid arterial pulses are mistaken for the JVP. Look for rapid descents - when you find them you know you have found what you're looking for.