“Comcast and Disney are staying focused on the prospect of bidding for key 21st Century Fox assets despite the concern about the climate for media mergers raised by the Justice Department’s decision to fight the $85 billion union of AT&T and Time Warner,” Variety reports.

“Sources say Fox is continuing to engage in very preliminary discussions with Comcast, Disney, and other potential suitors about a sale process of the 20th Century Fox film and TV studio, the FX Networks and National Geographic cable group, Fox’s 30% stake in Hulu, and international TV platforms including Star India and its 39% interest in Euro satcaster Sky,” the report adds.

Variety cites a source saying executives at Comcast and NBCUniversal are “being very serious” about studying the Fox assets and crunching the available numbers. “Fox is not believed to have progressed to the point of sending out briefing books or asking potential bidders to sign non-disclosure agreements,” the report notes.