Yes ,all most all DTH & Cable Tvs are feeling, i had seen many company (stb manufacture & DTH Cable Tv are testing one or 2 android stb in there test labs.) Upcoming next is android. In next 4-5 years almost every one having android box or dongle.
Its a choice of Customers, STB might be for new & those customer who wants OTT/Streaming & DTH in one platform & Dongle for who wants to take it additional. (Want to change its HDMI source in Tvfor watching OTT & Streaming Services :D)