The nerves call it

In case you were wondering -- Jen or Brad, Jen or Brad? Your neurons have chosen for you.

http://npg.nature.com/news/2005/050620/full/050620-7.html

Also, I guess that explains this:

http://www.msnbc.msn.com/id/8525941/site/newsweek/

I, too, like to use as few brain cells as possible in my TV viewing.