ABC Family's SWITCHED AT BIRTH Hits Year-and-a-Half High in Key Demo

At 8 o'clock, "Pretty Little Liars" posted 4-week highs in Adults 18-34 (803,000/1.2 rating), Women 18-34 (748,000/2.2 rating) and Women 18-49 (975,000/1.5 rating), ranking as cable TV's #1 telecast in the hour in the target measures.

Impressively, "Pretty Little Liars" ranked as Tuesday's #1 telecast for the 6th week in a row in Women 18-34 and Females 12-34 (988,000/2.2 rating) and was the #1 original cable TV telecast in Adults 18-34 and Viewers 12-34 (1.084 million/1.2 rating).

• Also noteworthy, "Pretty Little Liars" qualified as cable TV's #1 telecast in the hour for the 114th-consecutive telecast in Females 12-34 - every telecast since its June 2010 series debut - 66th in Adults 18-34, 73rd in Women 18-34 and 77th in Viewers 12-34.

• "Pretty Little Liars" was Tuesday's #1 Prime show on Twitter as a Twitter TV audience of 43,000 unique users produced nearly 5.3-million impressions.

• Based on L+3 ratings season to date, "Pretty Little Liars" spikes to 2.716 million Total Viewers, to 1.609 million Adults 18-49 and to 1.713 million Viewers 12-34.

"Switched at Birth" (9:00-10:00 p.m.)

At 9 o'clock, with season highs, "Switched at Birth" delivered its #1 most watched telecast in over one-and-a-half years in Women 18-34 (520,000/1.5 rating) and in 1-year in Women 18-49 (705,000/1.1 rating) - since 7/8/13 and 2/10/14, respectively - and set near 1-year highs in Adults 18-34 (549,000/0.8 rating) and Females 12-34 (642,000/1.4 rating) - since 3/3/14. It was also the series' #1 telecast in over 7 months in Adults 18-49 (790,000/0.6 rating) and was its #1 regular telecast in the time frame in Total Viewers (1.340 million) - since 7/14/14 and 7/21/14, accordingly.

• "Switched at Birth" ranked as TV's #1 telecast in its time period in Women 18-34 and Females 12-34 (642,000/1.4 rating) and was cable TV's #1 telecast in Adults 18-34.

• Based L+3 ratings season to date, "Switched at Birth" climbs to 1.916 million Total Viewers, to 1.106 million Adults 18-49 and to 954,000 Viewers 12-34.

Source: NTI, 2/10/15, Live + Same Day. Social Media Sources: SocialGuide/Nielsen Twitter TV ratings.