Only 4 of the original characters remain, but Grey's Anatomy has lived on for 14 seasons, and tonight, ABC's hit show will celebrate this momentous occasion with some hat tips to former characters. Chandra Wilson (Dr. Miranda Bailey), Justin Chambers (Dr. Alex Karev),  James Pickens Jr. (Dr. Richard Webber), and of course, Ellen Pompeo as Dr. Meredith Grey will see their … [Read more...] about Grey’s Anatomy Celebrates 300th Episode Tonight!