Random Riddle: 8-2-2015

I’m the base of a spirit,
my eyes they can’t see.
I dwell in the earth,
in the dark happily.
My flesh sometimes glazed,
I tell you some more,
I’ve skin that is praised,
by science and lore.
Some say you are like me,
when watching TV.
can you guess what I am
or what I might be?
 
Riddle