Fred is saying Merry Christmas to everyone in different languages as he gives away his money. At some point he says to the reporter "kala Christoúgenna." The reporter asks the camerawoman what he said, and she replied, "Its Greek to me," and in fact that is Greek for Merry Christmas.
The TV channel is WXMS, or W Xmas.
There's a nod to Miracle on 34th Street at the end.