On which network did 'Curb Your Enthusiasm' originally air?

In what year did 'Survivor' premiere? On which network did 'Big Brother' originally air? In what year did 'Big Brother' premiere? Who created 'Big Brother'? In what year did 'Curb Your Enthusiasm' premiere? Where is 'Curb Your Enthusiasm' set? Who created 'Curb Your Enthusiasm'? On which network did 'Girlfriends' originally air?