I was a Clear Channel sales assistant at a large NYC radio station- it was a typical administrative assistant position, but it was great for someone who is just out of college and still living with their parents. I learned so much from this job, and now i am working in Advertising sales. They usually want you to be interested in moving up into sales.
Downside: starting salary is 25,000- which isnt great. I was there for a year and a half and never got a raise. Also expect to be bossed around by a lot of people.