90210 (8pm, CW) - Season 3 opens with a deadly earthquake in Beverly Hills and Beverly coping with her rape. Also, Teddy faces a future without tennis after suffering an injury, and Annie and Liam make a decision about their relationship.
Bachelor Pad (8pm, ABC) - It's over. After a "Dancing with the Stars" type competition and a reunion of all 19 contenders, the first season's winners are announced.
Gossip Girl (9pm, CW) - In the fourth season opener, Blair and Serena enjoy summer in Paris trying to forget about the guys back home, until blair sees Chuck in France. Elsewhere, Nate meets a woman who gives him insight into his recent playboy ways and Dan must deal with a pregnant Georgina.
Lie to Me (9pm, Fox) - It's the Season 2 finale and a probe of the murder of Cal's friend, a journalist who was investigating political corruption, tests Cal's relationship with Reynolds and the FBI.
The Closer (9pm, TNT) - In the season finale, the slayings of two paramedics could be a signal indicating a potential terrorist attack is coming. Brenda's squad and the FBI embark on separate investigations, but Brenda is forced to work with a counterterrorism bigwig who is a final candidate for the police chief job.
The 19th Wife (9pm, Lifetime) - A new Lifetime movie starring Patricia Wettig as a Mormon wife who is accused of killing her polygamous husband. Her excommunicated son (Matt Czuchry "The Good Wife") and another wife (Chyler Leigh) come to her defense, but the two soon find their own lives in danger. Based on the novel by David Ebershoff.
Rizzoli & Isles (10pm, TNT) - In the finale for the first season, a savage gang that killed an undercover officer now targets the Boston homicide division, with Jane, Maura, and Frankie Jr. trapped and fighting to survive.