Comcast's uptick in ad sales and its lowest second-quarter net loss of video customers in a decade is a positive sign for TV, CEO Brian Roberts said Wednesday.
"We're not seeing a slowdown," Roberts told CNBC's "Squawk on the Street." "This is the best second quarter in 10 years for video, it continues a trend we've been seeing."
Earlier Wednesday, Comcast joined a growing list of companies beating Wall Street consensus this earnings season.
The company posted second-quarter earnings of 83 cents a share, 2 cents higher than forecasts. Revenue was $19.27 billion, versus an expected $18.99 billion.
The Philadelphia-based media giant had a net loss of 4,000 video customers, but said that was the best second-quarter result in over 10 years.
"I'm very optimistic that we can continue this growth," Roberts said. "We're having a wonderful run."
Churn, the number of customers who disconnect, continues to drop significantly, Roberts said.
He highlighted NBCUniversal's upfront ad sales, which ended last week with the best season since Comcast acquired NBC. Cable ad revenue was up 3.5 percent for the quarter and 7.5 percent year over year, with an increase in political ads ahead of the November elections.
"That tells you something about video's health," Roberts said.