I liked the walk through the campus, that was really nice to see. I think it gave a nice glimps of what it would be like to work at Microsoft; although it seemed most of the time you were filming the ceiling/sky and I couldn't see anything!
Charles, why are you always defending Microsoft? Let the developers and PMs defend/sell their product. You end up making yourself sound like a marketing head, instead of an unbiased technical interviewer.
I believe the viewers want to associate with the interviewer in that we want to view a balanced dialog as we would have with the interviewee.
I've been watching channel 9 since the very beginning, and I've always sighed when I've heard you sort of dwell on the selling points of the product rather than probe the corner cases. I think Scobble did a good job of getting at those more interesting topics.
Of course, I've seen that you're pretty sensitive about "Scobble did his thing, and I do my thing", but I think you can still be your own person and still learn from others.
That's my constructive criticism for today. Cheers, Munkie