Reduce font size or increase size of program guide grid?

I currently was using Beyond TV on my XP machine but now that I have
upgraded to Vista Ultimate I am wondering how I can either decrease the font
size and/or increase the size of the program guide grid. With Beyond TV I
was able to increase the number of channels as well as the length of time in
the future that I could see programs. This made it much easier to use.
With all the marketing I am seeing with people using Media Center on 24-30"
monitors or huge TVs I am wondering why it is not more obvious how to see
more. If it is currently impossible, does anyone know if MS plans to fix
this in an update perhaps? Thanks,
-Dan