'Dateline' pre-empted Saturday by Christmas film 'It's a Wonderful Life'

DATELINE on NBC. The Saturday Night Mystery will return next week. The 1946 Christmas movie "It's a Wonderful Life" with air instead in Prime-time (7 to 11 p.m.).

Click movie pictures of IT'S A WONDERFUL LIFE at AMAZON.

(Original movie poster from 1946).

(It's a Wonderful Life. George and his guardian angel).