You can watch a maximum of 4 videos per month. You will receive 4 play credits every month. Once you press play on a video, you will automatically use 1 play credit.
Once you press play on a video, you will have 72 hours to view it as many times as you like without using another play credit. If you would like to watch the same video after the 72 hours have passed, you will use up another play credit.