I happen to prefer XM because some of my heroes are there, but we have Sirius too.

• My newest radio

Commerical free music from classical, jazz, hip-hop, 40's 50's 50's showtunes, movie soundtracks, and on and on

Eight or so talk-radio shows: NPR, Air America, right leaning stuff, left leaning stuff

Comedy channels, all kinds of sports channels.

And, for the perverse like me, Opie & Anthony

• XM