As long as your HDTV receiver has an S-video or Composite video output you can hook it up to your old crt tv and watch downconverted HD content. If your tv doesn't have an S-video or Composite video input it can still be done. You can either connect the RCA Audio/Video cable from the HDTV receiver's Composite output to the Line In Composite connections on a VCR that is connected to the tv or to a RF Modulator that is then connected to the tv. Some RF Modulators even have an S-Video input such as the Dynex RF Modulator ($29.99 at Futureshop).