TiVo Guide Week of June 7, 2010 *spoiler alert*

"Nurse Jackie" In the second-season finale, Jackie's back at work after an aborted family vacation, and her indiscretions have put her at odds with her family, friends and coworkers. And the drug dealer she ripped off is now seeking revenge. Monday at 10 on Showtime.

"Pretty Little Liars" The series premiere of a drama about four estranged friends reuniting because of mysterious messages that suggest their missing friend is watching them. First up: Each girl receives a message about a personal secret she wants no one else to know. Among those secrets: a father's affair; some shoplifting charges; an attraction to a sister's fiancé; and an attraction to a female neighbor. Tuesday at 8 on ABC Family.

"Glee" Season 1 finale: Regionals are looming and Sue is scheming, jeopardizing the glee kids' chances once again. Meanwhile, Quinn has a life-changing event. Olivia Newton-John and Josh Groban have cameos as themselves. Tuesday at 8:59 on Fox.

"So You Think You Can Dance" The Top 10 dancers are introduced. Thursday at 9 on Fox.

"Expedition Great White" The crew must tag a female shark before heading back, and the one they catch proves to be a fighter. Sunday at 10 on National Geographic.