Channel 7, 8.30pm
★★★★ In the wake of the carnage that ended the last season of this series, it is hardly surprising that the excitable team at Seattle Grace-Mercy is still in chaos. Or somewhere very close to chaos. And this means that however sick their patients may be, the doctors, somehow, seem sicker. Tonight, for example, Cristina comes unglued in the middle of an operation. Someone else’s operation, that is.