I'm sure they did

This is odd. In her chat today, someone asked Lisa de Moraes:

have you seen previews of "Modern Family"? I have high hopes for this show. (And I know the twist at the end of the first episode, but won't tell.)

Lisa de Moraes: Actually the producers and the network have said it's okay to tell because their focus group research said it helped attract viewers... The show starts out being about three very different families. Then, turns out they are all one big family and they get together in the final scenes. It's hilariously funny, and hopefully this spoiler won't keep any of you from checking it out, I hope....

What? That was a spoiler? Every damn commercial I've seen for this show gives that away!