While we know we can't record HD content your issue sounds like a product defect. Call it in and ask for support, repair, replacement, and if they can't fix it, ask for the refund.
I have recently purchased a Panasonic TXL37S20BA tv. Im using the built in freeview and I have connected a dvd/hdd recorder to it with a scart lead. I can record a programme thats currently on but as soon as I turn the tv off (standby) it affects the recording and when I play it back its just a blank screen. Could you tell me how to fix this? Is there something I haven't done right? its doing my head in as i have tried all i can think of