Amazon Prime.com/myvideo allows their users to avail 30-day free trial period to go on the paid version of www.amazon.com/mytv. But this offer is only for the new users. If you are a returned user of Prime Video then you are not eligible for a prime video free trial. To avail of the free trial, you need to create an account on Prime Video with anew Email address and phone number. Then select the subscription www.Prime.com/myvideo plan and proceed with the payment. Once you completed the payment process your Free trial will start automatically Amazon Prime video.