You will need to connect your DVD Recorder to the Output of the HR20/21. FYI This will not be in HD, the highest resolution you will be able to receive is 480i (DVD Quality).
Procedure:
Choose connection type in order of least to highest quality: RF (Cable connection), Composite (Yellow, Red, White), S-Video (S-Video, Red, White), Component, (Red, Green, Blue, Red, White)
Connect the units following the DVD Recorder Manual's setup, Remember, AV Out connects to the DVR, AV In connects to the DVD Recorder.
Set up your HR20/21 to allow 480i output (if not already set) - The steps to do this differ depending on your box's software revision. Typically something like: Menu, Setup, Display
You will then be able to view the HR20/21's feed via the DVD Recorder after you select the appropriate input from the DVD Recorder and your TV.
Play your recording from the DVR and press record on the DVD Recorder (assuming there is a blank disc in it already
) Simply stop the DVD Recorder after the show is complete. Remember this method is real time.