I just recently bought a Panasonic smart tv and it has a Panasonic own OS which I find really crap and I'm not even able to download any apps. Only a few downloadable apps.

I am a Malaysian Indian so getting some good reliable steaming services like Hyyptv, Netflix, amazon prime doesn't have proper Indian content as well.
then I heard about this IPTV boxes like the  TX6 Smart Android TV Box and many similar like boxes.

They say it comes with 10000 channels and seems like its free which is very odd. How are they getting this free?
And there are so many variants and some require to top up(i don't understand this part) so it made things even difficult.

Basically all I want is a box that streams all Indian channels and English channels. anything more, it's even better. I don't mind paying monthly subscriptions as well but kalau boleh free lah (so Malaysian)

So what are the options available out there? please educate me on how this box works, is there any tweaking that needs to be done? I prefer plug and play. Also nothing app-based like yuptv (i can't download this in my Panasonic tv)