A question about this new show called the mentalist premiering on cbs?

Question

i know it premiers in september so why and how is there a full episode of it already online link below

http://www.surfthechannel.com/info/television/the_Mentalist/88038/S1E1.html?aid=112329

Answer 1

not sure what it is........I hit the link and it ask me to find singles in my area??

it's 1st episode will be on in September 20 something?

http://www.cbs.com/primetime/the_mentali...

Answer 2

its a promo

Answer 3

if it's an actual full episode, someone probably leaked the pilot to the internet.