so When my tv just updated to ver 6.0 android tv (its a 2015 sony with android tv). sling tv works well. but I saw that google play channel for trailers is now added to my regular channel list (which there is no input on).

I went through the settings and there isn't a way to directly do it. or potentially possibly? but I guess it doesn't harm to ask people that know more than me

according to this page

https://developer.android.com/training/tv/tif/index.html

its possible to basically in my uneducated terms add digital internal app sources of video as input to the channels in your tv. so you "supposedly" can just browse the channels on your tv input. am not sure if Sling tv added as a channel or the channels within sling can be added each to your tv input list

that would make iptv the best thing ever. anyone done it? I hope am not confusing anyone. its not the biggest of deals but man it would be such a nice QoL