Which Model?
Which Country?
What is the Input to the Recorder from?
.. I have 3 DVD-RW stand-alone recorders connected to cable input. 2 are tied to the co-ax, NOT to the cable box output and I can record standard TV stations. I can select station (ie channel 40 for Sci-fi) and set up when to record. The 3rd one is tied to the output of the cable box. This one will only record the channel that is coming from the box. To select a different channel you need a line from the PDR to the box to tell it to change the channel.
.. Without manual, do not know what pr1 and iv1 refer to. Tried downloading the manual for one from sansung and it would not let me, I probably need to register.