WatchESPN comes with the FireStick. I did not have to enter any credentials for an existing cable/directv account. I just tried it and it worked. I hope it does not expire at a later date but so far so good on both the fire sticks.
curious if you see this if you are still getting it for free and if anyone else can confirm. This would be worth buying a firestick for even though I have everything else in chromecast. But I wonder if it is because you are a prime member?