Apparently, you can't have your cake and eat it too...bummer...
My hubby has Sirius and LOVES it...satellite radio, TiVo, a few cigars now and then, and me are what seems to work for him...
He's not into NFL or NASCAR, so I can't tell you about those specifically, but if you listen to music at all I think that satellite radio is a must.
I'd certainly consider getting the service with the sport that you enjoy LISTENING to more and VIEWING the other at home.
Or tape 'em both and fugetabouit...
Once you go satellite and/or TiVo, you'll never go back, at all costs! I dare you! I even have Sirius in my dune buggy...
Marla