That preview is from the second season which starts, I believe, in March. The first season was short if I remember correctly. If you are interested it wouldn't take too long to catch up.
If you have a cable service that has "on demand" I'm guessing very soon you'll be able to see season one.
Btw, in case you didn't know, the story is about Norman Bates aka Psycho fame. It tells of his teenage years and I assume how he became the way he was.
TIS