I have struggled to figure out how to record TV broadcasts using my analog VCR, analog TV and a digital converter box. Before installing the converter, I was using a 4-port switch for the inputs (DVD player, VCR, and video game). I have the switch in the setup now, too.

I'd like to record while I am watching and while I'm away, using the VCR's excellent timed recording function. I understand that the only way to tune signals is through the converter box, and I understand that the VCR must be set to channel 3, and that the "VCR" button of the switch must be pressed.

Attached is a JPEG of my setup. Although I used just one purple line to represent RCA cables on this drawing, I have connected all three component ports (video, audioL and audioR) properly in each case.

I recorded once successfully while watching, pressing the VCR switch on the 4-port switch. But I CAN'T do timed recording. One time it seemed that the converter box turned itself off (I had left it on). Other times the converter was on, but the image recorded was "No Signal" and snow. The box is the DTX9950 "Digital Stream Digital-to-Analog Converter with Analog Pass-Through" from Radio Shack.

Is my setup wrong?
--TechNOmama