NGTV Guide: Tuesday, June 22

Pretty Little Liars – ABC Family 8/7c
“To Kill A Mocking Girl” – The girls try to pay tribute to Alison’s memory, but they are still being faced with unresolved issues. Aria has an unpleasant encounter with her father’s former mistress, and Spencer must face a vengeful Melissa, while Hanna is trying desperately to get her boyfriend to forget the ‘old Hanna’.