Yes, you have to sideload. See attached apk.
When i side-loaded the latest 7.0.99 from apkmirror.com it said failed older SDK, but i'll try the version you posted.
---------- Post added at 06:57 PM ---------- Previous post was at 06:48 PM ----------
I just side-loaded your version and vo...
I installed HBO GO just now (first install) on my FTV through Amazon. The apk is available at:
App version is 2.7.06
Edit: I don't have HBO subscription, so cannot activate and watch something for test...
I already have Aptoide, but didn't know about the other two, so thanks! There's too many problems with the Play Store, so I'll just stick with Aptoide and the other two you mentioned. If I ever really need an app from the Play Store, I could just ...
Appreciate if anyone can post Google Play Services v7.0.99.apk here. Thanks.
Here you go.... This file works on my FTV.