The chair of the Federal Communications Commission is opening a probe into NBC-parent Comcast’s relationships with its local broadcast TV affiliates, the latest in a series of investigations into major U.

FCC Chairman Brendan Carr sent a letter to Comcast on Tuesday announcing a probe of the company's relations with NBC affiliates.

The chairman of the FCC has opened another inquiry into a major media company, this time over the relationship between Comcast’s NBCUniversal and its local broadcast affiliates. Brendan Carr informed Comcast CEO Brian Roberts of the inquiry in a letter sent on Tuesday.