Its official Pretty Little Liars will be the longest lasting original show to ever air on ABC Family. The season 5 premiere of PLL is set to air tonight at 8pm, and will pick up right where the season 4 finale ended. This is abcfamily’s first ever multi-season pickup . The soapy mystery has been renewed for a sixth season , to air in mid-2015, and for a seventh season , to air in mid-2016. Pretty Little Liars, is ABC Family’s No. 1 series ever in total viewers (3.8 million) and all target demos: adults 18-34 (1.5 million/2.2 rating), women 18-34 (1.3 million/3.7 rating), adults 18-49 (2.0 million/1.6 rating), women 18-49 (1.7 million/2.7 rating), people 12-34 (2.6 million/2.8 rating) and females 12-34 (2.3 million/4.9 rating).