CBS (CBS) - Get CBS Corporation Class B Report posted first-quarter earnings of $4.21 a share, including a tax benefit of $2.04 a share, vs. year-earlier earnings of $1.32.

Adjusted earnings in the quarter were $1.37 a share, CBS said, which beat forecasts by 2 cents.

Revenue of $4.17 billion was higher than $3.76 billion a year earlier but came in below expectations of $4.3 billion. Advertising revenue jumped 18%, while affiliate and subscription fee revenue rose 13%. Cable networks revenue, however, declined 3% partly from lower programming sales.

"We delivered higher profits and achieved double-digit revenue growth, helped in part by Super Bowl LIII and strong increases in affiliate and subscription fee revenues," the company said in a statement.

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The media company last month extended the contract of acting CEO Joseph Ianniello through to Dec. 31, and suspended its search for a permanent CEO.

Ianniello was named chief operating officer in 2013. He served in that role until September 2018, when the company tapped him to take over while it searched for a replacement for chairman and CEO Les Moonves, who was ousted amid allegations of sexual misconduct.

CBS shares fell 0.3% to $50.25 in after-hours trading on Thursday.