More interviews is my vote.  :-)

Less interviews is mine... Some of them just seem to drag on so I tend to not listen to them, or they just sound like a marketing drone going on and on.

I prefer the start of the show, readers letters, details on new plugins, etc.

I agree about the marketing stuff... there have been a few that were way too heavy on that, I think the AMD Live! (if I'm remembering the right one) was one of these;  I think I'd like to see more interviews with Microsoft people.  Interviews with installers and some of the specific problems/work arrounds that they come up with would also be interesting.

Perhaps what I'd like to see (just thinking out loud here) is covering how to accomplish something specific - almost a guide for doing more advanced things with Media Center, what problems you run into, and how to work arround them.  Maybe look at something like Systm (http://revision3.com/systm/) for inspiration/what I'm talking about?