Maybe it was because mine was a Series 1? I haven't tried on my new HD-TiVo.

Meanwhile, if you go to channel 800, there's a scrolling message that tells you which XM channels are coming to DirecTV. The decisions are somewhat arbitrary. Total Choice gets some nice music channels, like Real Jazz, which is fantastic. Other good channels like Fred (alternate 80's music) only show up in Total Choice Plus. Annoyingly, Comedy XL doesn't show up at all.