Below are excerpts from ABC Entertainment President Steve McPherson's press tour last week, as reported by Entertainment Weekly. In particular, the ABC exec responded to criticism from Katherine Heigl about Grey's Anatomy, and how it dealt with T.R. Knight.

2:18 p.m.: “[Grey's Anatomy] is a show that’s evolving,” he says, responding to a question about the departure of T.R. Knight. “We feel like Shonda Rhimes really hit her stride at the end of last year and we’re happy with what we’ve seen so far this season.”

He says we can expect more cast additions, in part to fill the void left by Ellen Pompeo “who is going to have a baby, so that’ll probably take her out for a couple of episodes.”

2:23 p.m.: Steve McPherson goes on to call Katherine Heigl’s latest anti-Grey's Anatomy tirade “unfortunate,” adding diplomatically, “People will behave in a way they choose to behave."

"There are so many people who work unbelievably hard to produce Grey’s Anatomy so I think it’s really hard for them to hear [her complain about working a 17-hour day].”

It wouldn't be Grey's Anatomy without Katherine Heigl controversy.

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