Robert Iger, chairman and chief executive officer of Walt Disney Co. and Brian Roberts, Comcast chairman and CEO. Getty Images

Now that Comcast has trumped Fox and Disney's bid to buy 61 percent of U.K. pay-TV company Sky, attention is turning to the other 39 percent — as well as streaming platform Hulu. The cable and entertainment giant outbid Fox, working in concert with Disney, by more than 1.50 pounds per share Saturday, and earned the recommendation of Sky's board. Comcast's offer valued the publicly traded portion of Sky at about $39 billion. In a separate transaction, Fox is selling Disney the rest of Sky as part of a $71.3 billion deal announced earlier this year. Based on Comcast's valuation for Sky, that stake is now worth about $15 billion. Comcast expects Disney will let go of its 39 percent stake, giving CEO Brian Roberts complete ownership of the TV distributor and owner of content, including Premier League rights, according to people familiar with the matter. The simplest way of doing this would be for Fox to offer its shares in Sky at the price Comcast offered yesterday. The cash proceeds would then go to Disney.

Still, no decision has been made by Fox and Disney yet. Disney CEO Bob Iger has repeatedly praised Sky's value, calling it a "crown jewel" in a 2017 interview. It's also possible Comcast won't be able to convince more than 50 percent of Sky's holders to tender their shares, despite its higher bid. Yet Comcast's final bid of 17.28 pounds a share (approximately $22.58 at current exchange rates), topping the 15.67 pounds (or $20.49) offered by Fox/Disney, should be enough to entice current Sky shareholders to begin tendering their shares beginning on Monday. But Comcast intentionally wanted to bid about 1-1.50 pounds per share higher than Fox to ensure current Sky shareholders wouldn't be scared away by potential ownership or regulatory challenges, said two people familiar with the matter, who asked not to be named because the discussions are private. Comcast ended up winning the blind third-round auction by 1.61 pounds per share. Since 2016, Sky shareholders have seen the value of their investment skyrocket through acquisition offers. Fox originally agreed to buy the 61 percent Sky stake for 10.75 pounds per share in December 2016. Comcast's offer represents a 61 percent premium over that initial deal.

Hulu's fate

Todd Haselton | CNBC