Combined audio and video switchbox

FIG. 1 is a perspective view of our new design as seen from the front, top and left side of the combined audio and video switchbox;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a back view thereof; and,

FIG. 7 is a bottom view thereof.

The elements shown in broken lines are for environmental purposes only and form no part of the claimed design.