Nvidia Shield TV Thread

Hello guys, can any one help I want to run Brutal doom and other mods on my Nvidia Shield TV box.

I have looked on Youtube and the like but cant find any tutorials.. only working games on the shield but no guide on how to do this.

I have Doom Touch installed and I also have Doom BFG edition which includes Doom 1 and 2 AND 3..

But Im guessing I need a stand alone doom 1 & 2 ?. So my question is can any one give me advice on how to install Brutal doom and other mods!.. a guide or links on how to install the files onto my Nvidia Shield TV would be great.

Thanks for your time..guys

cheers bigjohn57