is there an attic or basement to these rooms? and are tehy unfinished?
if so, you can find out where the walls you want to run cable through are and drill up, or down into the wall.
then you put the hole in the wall where you want it.
you can then fish wires through the hole an into the basement, or attic, then over to the other wall and down, or up into it.
thats the easiest way to do it.
