The man who changed TV business journalismNEW YORK (MarketWatch) -- When Louis Rukeyser entered the world of TV business journalism in 1970, it was Ptolemaic. When he left us this week, it was Copernican, and the change that occurred in between is due in no small part to Rukeyser himself -- a charming, witty, hugely intelligent and Hollywood-handsome man of 73, who looked like George Washington and had a pied-piper effect on his national audience.