I think live tv app and its service is getting closer to stable version. Yesterday night i noticed that for few hours no signal was showing for the first time. After few hrs feed was came back automatically.
So after that i took a risk and reset my stb box but even after stb reset live tv is still working without any issue. Earlier in feb month i lost the app access after resetting the stb. So this means my box is assigned now for this service permanently.
Even i checked by uninstalling the app update, but the channels are still working in the previous version also. So that means now this service does not rely on the app version to work. It's configuring and authenting directly from servers.