Transferring Programs from DVR to DVD or VHS

Since getting U-Verse in 2008, I have been successfully transferring some programs from the DVR to either DVD or VHS tape by means of a DVD recorder. However, since getting a wireless receiver, I get sound but no video even with programs that are not copyrighted. Does anyone know of a solution to this dilemma? I am running out of space on the DVR.  Does it just plain not work with the wireless boxes, even one that has a single coaxial connector?

Secondarily, I was hoping to find an updated recorder that might be able to handle this situation, thinking mine is too old. But upon doing an internet search, all I can find are used (old) recorders of this type. It looks as though this technology is obsolete. So my question is, surely there is still a demand for this ability, so what do people use these days to transfer programs off the DVR and not lose them?