Hank decides to write his congressman and sits down at Peggy's blueberry? iMac. He picks up the mouse and points it at the screen using it like a remote control. When nothing happens he begins writing out his letter on paper with the animated iMac pushed to the side.
There was an earlier episode when Hank bought the iMac for his wife. She happily exclaims something like -"you got me the blue one!"