On the earnings call investors are sure to want to hear a bit from incoming CEO, currently COO and president, Robert Marcus.
Another hot topic: Time Warner Cable is in the midst of intense negotiations with CBS over the fees it pays the broadcaster. The question there: How much higher will content costs climb?
(Read more: Cable, content companies stop fighting: Comcast CEO)
Satellite TV giant DirecTV is expected to show bigger gains than its cable rival. Wall Street analysts are looking for 7 percent revenue growth to $7.75 billion and 22 percent earnings growth to $1.33 per share.
Unlike Comcast and Time Warner Cable, DirecTV also has operations in Latin America, which raises some questions about the current quarter. In June management said it overstated the number of Brazilian customers by about 200,000—we'll see how that impacts results. For its U.S. operations the question is again, how many customers it loses—losses are expected, we'll see whether they're as bad as feared.