It's too early to draw any conclusions from these numbers, but here's a quick look at how Lawrence O'Donnell's show is performing in Countdown's old timeslot:
Total viewers:
Monday: 1,533,000 (up 268,000 from previous Monday)
Wednesday: 1,080,000 (down 92,000 from previous Wednesday)
Advertising demo (25-54):
Monday: 332,000 (down 37,000 from previous Monday)
Wednesday: 219,000 (down 29,000 from previous Wednesday)
I didn't include Tuesday because the State of the Union address preempted normal programming. It looks like O'Donnell may have gotten a bump on Monday from interest in his new slot, but on Wednesday things were down a little bit relative to the previous week, though still within the same general range.