The $30 billion deal that switches control of NBC Universal from General Electric to Comcast brings value to allow everyone involved to focus more sharply on their core businesses, leaders of the two companies said Thursday.

NBC Rainbow Room 30 rokefeller Plaza

"Either you're moving forward or you're moving backwards," GE CEO Jeff Immelt said in an interview on CNBC. "Being able to partner in cable and digital makes NBC Universal more valuable for investors, for Comcast investors and for the NBCU team."