Hey, William.
I'm a totally confused. Not quite sure what do you mean by "IMA SDK does handle this" and what exactly not supported.
Just to make sure we are on the same page: at the moment we need an ad
source to feed into IMA SDK. When we've started IMA SDK integration
there was an article how to use AdMob account to provide ads for IMA
SDK. However, we didn't manage to find it anymore. Documentation was updated and the link to the article disappeared. Do you possibly know how to
do it or do you have a contact who could help with this?
Please, let me know I what I write is a complete nonsense.
P.S. please, note that IMA SDK guys are surprised by the fact we can't use AdMob SDK for Android TV and don't know that you suggest using it. LOL.