Boosted by the first week of its ldquo;25 Days of Christmasrdquo; programming, ABC Family was cable’s No. 2 network in total primetime viewers last week, enjoying its third most-watched week ever, network officials said Tuesday.img src="http://feeds.feedburner.com/~r/MultichannelBreakingNews/~4/479858727" height="1" width="1"/