Thanks to @tihmstar this is how to jailbreak your Apple TV 3 (3,1 & 3,2)
Step 1:
change your DNS to 46.166.144.59
Step 2:
Go to Send Data to Apple and press the play button
Step 3:
Click add profile and add the profile you see in the picture
Step 4:
Go back and open Trailers app and you should see etasonATV. Click the hashtag and after your ATV reboots go set DNS back to normal!
Step 5:
SSH into your ATV and install untether by typing in:
"dpkg -i /var/root/untether.deb"
(untether deb is downloaded by default)