On your Firestick / FireTV device, simply do the following:
1. Go to the firestick settings
2. Device or My Fire TV
3. Developer Options
4. Set Unknown Sources to ON
5. Go back to the main Firestick home page
6. Go to the search icon (top left)
7. Search for Downloader and install it
8. Open Downloader
9. Type the following in the URL box: 33275 then click go
10. Click on Vimu or VLC and New world and install both
11. Login with the username and password of your subscription.
12. In the app, go to the settings (cog) at the top right
settings.
13. Select Player Selection.
14. Click Add Player then add Vimu or VLC
15. Then go to player selection and change movies series and catch up to Vimu or VLC.
You can also download i-Tech Pro as a back up player