Please on AstraSat 19.2 east there are a group of wonderful channels named Premiere. I can watch Premiere Sport Portal channel.

Please how can I watch Sport channels running under Premiere Sport Portal channel using Humax 5400 remote?

Someone gave me a hint:
-press (TV/MAX) button >>> get >>red light, press again >>> get>>green light.
-press yellow button …. Expect a small window will open at upper left corner.
You can choose the desired sport channel?
Is that correct? I don’t know.
…………………….
in my case I get a warning window (SUBTITLE IS NOT AVAILABLE)
…………..
So please who succeeded watch sport1, sport 2, sport3 …etc,. is kindly requested to give me a hint might help me.
Thanks.