The minimum of SAVC and SAC curves are the points where the marginal cost curve cuts them. But in the wideo presented here doesn't depict that correctly. I request meritnation experts to rectify it.
We appreciate your bringing this particular error to our notice. Off-course, MC has to intersect both SAC and SAVC at their respective minimum points. The concerned error has been rectified and will be updated soon. We shall most definitely try and ensure that such errors do not occur in the future.