Tutorial: Root Shield Android TV (2015; 16GB) (Nougat)

NOTE: We have not tested this tutorial with Shield Experience 6.0.  However we feel confident that it will work, as the Shield TV 16GB (2017) worked ok.

We are rooting the Shield Android TV (2015; 16GB SKU) running Android 7.0 (aka Nougat).  This should work on all builds of Nougat moving forward.  Looking for the Shield Android TV (2017; 16GB SKU) tutorial?  Click here.  Looking for the 500GB SKU tutorial?  Click here.