CBS
From Tardis Wiki, the free Doctor Who reference
CBS was an American television broadcasting company.
Walter Cronkite was a newsreader for CBS, and reported on the Apollo 11 landing in 1969. (TV: Day of the Moon [+]Loading...["Day of the Moon (TV story)"], PROSE: Doctor Who: The Encyclopedia [+]Loading...["Doctor Who: The Encyclopedia (reference book)"])
Behind the scenes
Information from invalid sources
If they were to take over producing Who, the tatty telephone box exterior for the Doctor's TARDIS would be replaced by an American Telephone Company tower block. (NOTVALID: What If Doctor Who Was Produced By...?)