Yes, greys anatomy is a great TV drama
Overloaded with drama, what hasn't happened there?? Earthquakes, ferry sinking, shootings, bombs!
In Season 15,13th episode has a gunfight  
Oh wow, there's been so much it kinda blends together. So many different actors have came and went too.
Yes so many different actors left for various reasons. nobody stayed forever
Well, there's a few, the lead, Meredith has been in like every epis
Yes Meredith who is a lead stayed almost every episode
I think I read it was just renewed for another season.
yes Greys anatomy is renewed for 15th season which is longest drama
That's amazing, nice that a female lead drama is the longest one.