Great question. Here’s a quick tutorial:
Download Play for Windows at https://play.bittorrent.com
Click on the installation file
After Play for Windows installation completes, a webpage will automatically launch to guide you through the setup process
Follow instructions to choose a folder on your computer that contains the videos you want to watch
Download the Play for iOS or Play for Android app
Launch the mobile app
NOTE: Make sure your mobile app and your home computer are on the same wifi network. The pairing process will not work if you are on a different wifi network.
Follow instructions on the mobile app to find your 4 digit PIN code
Enter your 4 digit PIN code on Play for Windows
Your done! Check your mobile app to view all of your videos on your mobile device