I would certainly hope that Skyvision would at least replace the batteries in the DSR920 receivers. I suspect they did not in the DSR410s they market.
Too bad they couldn't recycle the DSR921s from Starchoice or some other Motorola box that's out there to increase the availability.
I'm glad I got my new 922s while they were still being produced. Even though my first failed on the 3rd month anniversary and took forever to receive another new one back in January.
I've got a Voom [DSR-550? I think it is] I'd LOVE to load up w/4DTV FW and maps...........(sigh)