Grey's Anatomy is all-new this evening, as the much-hyped merger of Seattle Grace and Mercy West begins to take shape in "I Always Feel Like Somebody's Watchin' Me."

Following last week's emotional two-hour season premiere (click for guides to Parts I and II) tonight's episode is the centerpiece of ABC's revamped Thursday night lineup.

Tonight after Grey's Anatomy, the third season of Private Practice commences, picking up where the last season dramatically left off. Fans of Shonda Rhimes' much-improved Grey's Anatomy spinoff can expect Violet to survive - but the details remain shrouded in mystery.

Our sister site, TV Fanatic, has all the latest on Private Practice.

Prior to Grey's Anatomy at 8 p.m. EST is ABC's hottest new series, FlashForward. If you saw the premiere and are already hooked, check out these FlashForward spoilers for the newest clues. If you haven't seen it, it's definitely worth giving a shot this evening.

For three full hours, ABC's Thursday lineup is not to be missed!

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