The countdown is on. Only hours remain before Grey's Anatomy returns with an all-new episode, "Testing 1-2-3" (follow this link for a preview).

Our episode forum is live and ready for your comments. What's up with the girl in the bar looking at Derek like that? How will poor Meredith handle yet another family loss?

Moreover, is Richard going to be alright? Will Burktina have their wonderful wedding day? Who, if anyone, is going to learn about what George and Izzie have been up to?

Both the suspense and unanswered questions continue to build as Season 3 draws to a close. We can't wait to see what happens, and to read what you think about the events at Seattle Grace. Share your thoughts before, during and after the broadcast with fellow fans in our forum by clicking HERE.

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.