Thanks for the suggestions Beef.
You have me thinking that I may want to develop several products to fit different needs.
1. Fantasy Ticker for any TV (for those with satellite or broadcast)
2. Fantasy Ticker for cable that utilizes interactive TV (cable).
3. Fantasy Ticker for your PC. (Even though many league management systems already have this).
4. Audio system that announces the scores. I already have this for NFL football on my web site -
In response to MrMarley, the TV overlay device is $50. I would then just charge about $5 a month for the service.