The easiest thing I can think of is to hook up your receiver to your PC, use a VNC server on your PC, then use VNC Viewer on your tablet.

For your PC:
http://www.realvnc.com/products/free/4.1/download.html

For your tablet:
http://maemo.org/downloads/product/OS2008/vncviewer/

If you're within the same wireless network, it should be simple, but if you're not, you may need to set up port forwarding on your router (in which case you should definitely make sure your VNC is password-protected)

More info on VNC can be found here:
http://en.wikipedia.org/wiki/Virtual_Network_Computing