How to set permanent mediaplayer+ playback in all channel bcoz I see when I change to other channel and go to playback it's not set meadiaplayer+ as default

Thanks so much it's like my problem solved I choose mediaplayer+ Everything now flow nicely

I don't. Understand what I must do I click menu then playback Option it show stop ,API media player, chromecast.so what I must do after

Don't have picture, at first place I thought maybe it's from my internet then I tried to change using another app I saw everything working flawless but when I switch to progtv same freeze happen constantly, it happen for some channels not all channel

I don't know if there is setting to set but every time I'm using progtv to watch iptv I'm getting instant buffering in some channel but when I use another app same channel works fine no buffer