Nightly Business Report, the public TV business news show that has repeatedly shed staff during nearly three tumultuous years under two owners, has been sold again – this time to financial news powerhouse CNBC. The cable network will produce the weeknightly series exclusively for public TV stations from its headquarters in Englewood Cliffs, N.J., effective March 4. The show’s bureaus in New York and Washington and its headquarters at Miami’s WPBT will shut down. The sale brings another round of changes to the staff who produce and appear on the show. Anchor Susie Gharib will stay with NBR, but co-anchor Tom Hudson is exiting.