Pros
The people here are fantastic. There is camaraderie and support among assistants and people will go out of their way to help you. You get to be at the forefront of making television and really learn the ins and outs of a huge company.
Cons
Every department has a different culture to it, and your experience really depends on who your department head is. Overall, CBS suffers from the same malady as most of the entertainment industry. In no particular order: they underpay assistants, they don't promote people, diversity is paltry, there was no innovation or willingness to adapt, and there is a HUGE culture of overwork. People played a constant game of who could leave work the latest (even if there was nothing to do) and almost everyone ate lunch at their desks/worked through lunch. I chose to leave the entertainment industry after working here. If it's your absolute dream to make television, maybe it will be worth it to you, but it wasn't worth sacrificing my quality of life anymore.