You don't need to watch a video, it's very straight forward, even for the non technical.
For Windows
1. Download the android SDK
https://developer.android.com/sdk/index.html?hl=sk
2. Unpack the SDK to any location using 7Zip or windows Unzipping utility
3. Download the Frodo APK for Android from XBMC
http://xbmc.org/download/
4. Make it easy on yourself and move the APK download into the "platform-tools" folder inside the folder where you unpacked the Android SDK (ie. C:\Users\admin\Downloads\adt-bundle-windows-x86_64-20140321\sdk\platform-tools\ )
5. Inside the platform tools folder is the ADB Utility you will be using. Click the "Start" menu and type CMD into the search box, then run the cmd.exe when it pops up in the search.
6. Navigate to the "platform-tools" folder (ie C:\Users\admin\Downloads\adt-bundle-windows-x86_64-20140321\sdk\platform-tools\) This location depends on where YOU put it.
7. Go to your Amazon Fire TV and use the remote to navigate to SETTINGS -> SYSTEM -> DEVELOPER OPTIONS -> ADB DEBUGGING and click to turn it to "On"
8. Now Navigate on your Amazon FireTV to SETTINGS -> SYSTEM -> ABOUT -> NETWORK and write down the IP address for the FireTV from this screen.
9. Now go back to your computer and run the commands from the Amazon instructions in the CMD cammand line window (
https://developer.amazon.com/sdk/asb/app-install.html). You don't need eclipse, just use the command line as follows:
>adb kill-server
>adb start-server
>adb connect TYPE THE IP ADDRESS YOU WROTE DOWN HERE
>adb install xbmc-12.3-Frodo-armeabi-v7a.apk
10. In the window you will see the command install the APK file and finish with the word "success"
11. Now go back to your Amazon FireTV and navigate with the remote to SETTINGS -> APPLICATIONS -> XBMC it should be at the bottom of the list. Click Launch Application and it will startup.