Sirius has the NFL. Sirius and XM carry certain college conferences (football and basketball), so it depends on which team you are wanting to hear. XM has Major League Baseball. You might want to check out the websites of XM and Sirius to see what other differences they have in sports programming.
XM has Laura Ingraham (on a three hour delay) and Glenn Beck, but no longer has Michael Medved. Sirius used to have Laura Ingraham, but doesn't anymore. Sirius doesn't have Glenn Beck or Michael Medved.
Personally, I prefer XM's music programming to that of Sirius. We've had XM since 2001 and can't imagine being without it. Again, you might want to check out their respective websites to compare lineups and see where your musical tastes are best represented.
Hey, thanks for the information. I'm really leaning towards XM. I love football, but I'm almost never in my car on Sundays to listen to the NFL anyway. I know XM covers Pac 10 football and now that I live in Tennessee I miss Pac 10 football (I graduated from UW) so that's a big plus. I sampled the music stations on XM and loved the variety.
I'm putting the radio into an old Buick I just bought, but the radio doesn't work so today I'm going to install another radio in it so that the XM can work through it. Hope this all works.
Thanks again for the information.