Thanks for all the feedback guys. After doing more research on Entrepreneur's magazine company EMI, it seems they have sent several C&D's of which most people comply.
They have went to court on one case involving Scott Smith which they won. Nonetheless Smith is now suing them. Likewise Bill Gates recently named one of his new products
Entrepreneur.
I think I may just move forward with the domain as planned. And just to make sure that people are not confused, I will put a disclaimer right on the site that states EntrepreneurRadio.fm is and independent
radio show and has no relation with Entrepreneur Magazine or EMI. This way how could any judge say yep, it's very confusing to users...
I suppose if I get a C&D I can deal with it then, rebrand, 301, or even try to get some exposure for the disservice EMI is doing to every real life entrepreneur in the world.
The other brand names I liked were ones like StartUpRadio, however anything with the word startup that I found was taken. I'd rather use a .com if it isn't going to be EntrepreneurRadio.fm.