Thanks! Yes, the DVD player can output any disc in either PAL or NTSC, so that's not a problem. But as I mentioned, the apartment's TV is very old and only has a coaxial input jack. And since I'm only there a couple months at a time, I'm not about to buy a TV for the landlords.
I've seen RCA-to-euroconnector adapters in the electronics department of El Corte Inglés. But I was hoping there would be some way to do RCA-to-coax, without going through a VCR. Oh well... it's not all that important.