Comcast reports earnings before the bell — here's what to expect

1. Comcast's Q4 earnings will reveal key broadband business insights. 2. CEO Watson expects over 100,000 broadband customer losses in Q4. 3. Competition from wireless providers is impacting subscriber growth. 4. Analysts anticipate $31.64 billion in revenue and $0.86 EPS for Q4. 5. Updates on NBCUniversal's Peacock and cable network spinoff are critical.