Here's what Comcast reported versus Wall Street's expectations:
Comcast's big beat on high-speed internet adds makes for the company's "best broadband quarter in 10 years," CEO Brian Roberts told CNBC's "Squawk Box."
"Our product's better; our high-speed internet is just going great," Roberts said. "So we're seeing a really good transformation of the cable business into connectivity, into higher margins, lower capital spending, and that's why the numbers all seem to be better than people's expectations."
Shares of Comcast rose 5.5 percent in premarket trading Thursday. It closed the day up 5.04 percent.
Comcast also reported a net drop in video customers of 106,000 for the third quarter, better than the expected loss of 153,000, and an improvement from the previous quarter, when Comcast posted a net loss of 140,000 video customers.
The company's NBCUniversal segment, which includes broadcast and cable channels as well as theme parks and film studios, has weathered the downturn in traditional media relatively well.
Revenue from the division grew by 8 percent during the quarter to $8.63 billion, staying mostly in line with recent quarters.
NBCUniversal, parent company of NBC and CNBC, has posted consistent revenue figures of roughly $8 billion for the last several reports, with the exception of a particularly strong first-quarter report bolstered by coverage of the Super Bowl and the 2018 Winter Olympics.
Here's how the rest of Comcast's divisions did for the third quarter:
Also Thursday, Comcast announced a 19 cents per share dividend, payable to shareholders on Jan. 23.
The quarterly report comes just weeks after Comcast won a contested bid for British broadcaster Sky, expanding its reach in traditional media and solidifying a long desired international play. The acquisition, which was finalized this quarter, wasn't reflected in last quarter's report.
"I think this feels like a new beginning," Roberts told CNBC after the earnings report. "It triples our footprint in the television business and doubles our footprint in the broadband space."
Disclosure: Comcast is the owner of NBCUniversal, parent company of CNBC and CNBC.com.