Here is how you install Kodi on your AppleTV 4 via Cydia Impactor, what an awesome little tool, no need to use Xcode or need of Full paid Dev account, simple to use and helps everyone.
Things you need:
1. AppleTV 4
2. USB Type C
3. PC, MAC PC, or Linux PC or laptop
4. Itunes installed on your Computer
5. Cydia Impactor
6. Kodi IPA file
7. 10 Minutes
Where to purchase:
Amazon USA: http://amzn.to/2lBuTdI ( Just choose one )
Amazon CAN: http://amzn.to/2lWc3kk ( Just Choose one )
Software needed for this process:
Cydia Impactor: http://bit.ly/2lfpAEN
Backup download: https://goo.gl/LsJVdM
Kodi 17 IPA: https://goo.gl/FwiAIi
( remember to unzip )
Kodi 16 IPA: https://goo.gl/dTtbMB ( remember to unzip )