Labor Market: Supply and Demand

The labor market has it's own version of supply and demand as well. This is the demand for more works at that position, and what the company can supply. Now, the supply and demand for the field I would like to get into. I would like to be a commentator for sports games. Preferably football, or baseball. However, I'd probably need to get something for communications from college, and I'm not sure demand would be that high for new commentators. If I were to get a job in that particular field, I would guess it would pay well, and be a nice boost to income.