From this detailed guide, you can learn how to install MLB TV Addon On Your Kodi.
this installation guide applies to all compatible devices including Amazon Firestick, Fire TV, Android & iOS, Mac, Windows, Android TV, Android Boxes, etc.How To Install MLB TV Kodi Addon
- Open Kodi
- Be sure to have the Unknown Source box checked as Kodi requires this before installing 3rd party add-ons.
- HOME Screen > Add-ons > Settings button 
> Add-ons > Enable Unknown Sources.
- From your Home Screen Click Add-ons
- Click the Add-on Browser Icon
- Click Kodi Add-on Repository
- Click Video Add-Ons
- Click MLB TV
- Click Install
- Wait for Add-On Enabled Notification
is now installed and ready to use.
The Addon can be accessed by going back to the main screen of Kodi > Add-ons - Video Add-ons
, enjoy.