For those of you curious about such things, USA Today has a breakdown of last week’s ratings.
GREY’S ANATOMY did very well in BOSTON LEGAL’s time slot. NBC’s Must See Thursday Lineup had record low viewership, though THE OFFICE did top LIFE ON A STICK, which had the much larger AI lead-in.
THE SHIELD’s ratings dropped — as should have been assumed — but are still ahead of last season. Last year, as I recall, they dropped very low, but were still good enough for renewal. I imagine strong DVD sales helped that out.