After falling about 12% in the opening minutes, the stock drifted steadily lower as negative sentiment intensified.
Total revenue was flat at $13.7 billion, matching Street estimates.
Broadband has been seen as a bulwark for longtime cable providers battling through a period of widespread cord-cutting.
Charter CommunicationsYvonne Hemsey/Getty Images
He characterized the issues in the quarter as temporary challenges.
Charter ended the year with 13.5 million residential video customers.
Video revenue, accordingly, fell 8% in the quarter.
There was minimal talk of the Disney fight during the earnings call.
Winfrey highlighted the launch of Xumo, a joint venture with Comcast, during the fourth quarter.
Xumo aims to present a streamlined interface for streaming customers.
