I have a Humax PVR-9300T connected to my TV via an HDMI cable, plus a DVD also connected to the TV via an HDMI cable. I now want to connect my VCR to the system and have connected the VCR to the Humax via a SCART cable using the VCR socket on my Humax, but I cannot select the VCR via the Humax to play any tapes. I also tried the TV SCART socket on my Humax with the same result. I have not connected an aerial to the VCR as I only want it to play tapes and not record. My TV is a Panasonic TX-40EX700B. The DVD does not have a SCART connector. How do I get my VCR to work with my set up?