Vantaggi
There are many different career opportunities within the company itself. MTV employees are generally from a very young crowd - in my department, I don't believe anybody is over 40. MTV provides amazing health benefits and employee discounts with a wide range of companies and services. One of my favorite "perks" is the 10k a year tuition reimbursement (tax free until you you go over 5k I think). If you're lucky, you will get to work with a great team of people.
Svantaggi
It is difficult to move up the ladder within your own department. If you are hired on as a freelancer, it may take a while to get a head count approval and get converted to a full-time position even if your manager and boss recognize your value to the team. If you are below manager level, your pay will not be anything nominal.