computer monitor on the desk with HDMI cable running from my kindle fire
I have a similar set up with cable from my laptop to the LCD TV. I also have the ROKU box and the WDTV wifi box that accesses digital TV programs and movies I have saved on a WD NAS wireless 3TB disk drive.
Someone recently mentioned
PLEX in a similar TV-Computers thread. I checked it out. I wish I had known about earlier. It is a [currently free] software app that basically replaces the WDTV wifi box by using the local network computers.