I've done the same thing with dizqueTv for my grandmother. On her Android TV, I was able to integrate the IPTV channels on the same channels list, so she can simply use the remote to navigate between the digital channels and the IPTV channels (30 for Hercule Poirot, 31 for classic B&W movies, etc.)
>>archon+jd
No clue about dizqueTV, but ErsatzTV is German for tv replacement/substitute :-) so it has a little more meaning then the Chinese Amazon names ;-)