not long... My PC is my choice of entertainment, for everything. Tv, Music, Games, communication... you name it my PC does it. and it does it quickly. This is the big reason why i wont have a "smart"phone. If i wanted a portable computer, I would buy a laptop, Phones just dont do it for me.
To answer the original question
if im at home, about 8 hours (while i sleep).... if not, i dont really miss it.