I've seen every one.
Some I watched more than others.
I started watching from the middle of BB1 and when BB2 was on I never missed a second.
I watched all of BB3 aswell but must admit to forcing myself to do it as I was hoping it would develop the same as BB2 did.It was never going to even come close I'm afraid.
I've still stuck with it though and never missed any of them but BB2 will always be the best