I know what you mean blinkin, I felt that way last year too. So full of anticipation and longing for it to be as good as the previous year.
Even though I was incredibly disappointed with BB3, I still can't wait for BB4 and i'm still thinking the same things.
I just love big Brother, and i'll watch it whatever happens, I watched it last year when i didn't enjoy it so nothing's going to stop me now!