Okay, I looked at what I have set up.
I have a Motorola Comcast Digital Box. From what I know, they make 3 different ones, 2 of them have a display with the cable channel number, the other one doesn't have that display . The one I have has a display.
I have a Magnavox combo Video Player-Recorder/DVD player model # DV220MW9
I have a cable ready Sharp TV, but it is NOT digital.
Coax cable from the wall to the in port of the cable box.
Coax cable from the digital box out port (marked to TV/VCR) STRAIGHT to the TV.
2 RCA cables (1 for video, on for audio) from the out ports of the cable box to the in ports of the VCR/DVD. (The cable box actually has 3 out ports, 2 for audio and one for video, but my VCR/DVD only has 2 in ports, on each for audio and video.)
From the RCA out ports of the VCR/DVD, 3 RCA cables (2 for audio, 1 for video) that go the the RCA in ports of the TV.
As I said, when I record a show, I need to have the cable box set to the channel I want to record.
So, for instance, I can program the VCR to record from 10 PM to 11 PM on cable channel 53. I then click the "timer set" button on the VCR. At that point, I need to click the Video/TV button on the TV to "TV", and whatever channel I have on the cable box will be on the TV.
I can watch other stuff on the TV in the meantime (ie, change the channel of the cable box), but by 10 PM (when the show I want to record starts), I have to switch the cable box to channel 53, and of course, that is what is also displayed on the TV. This is usually not an issue, cause most stuff I record is after we are done watching TV for the night.
However, I CAN watch a DVD from the VCR/DVD while the program is recording.
Hope that makes sense......
One other note......my VCR/DVD does NOT have a tuning receiver. If your does, be sure to have it set to channel 3 (sometimes 4, depending where you live). Same with the channel on the TV.........bot should ALWAYS be set to 3, as you are controlling the signal via the cable box.