Pretty Little Liars. 8pm on ABC Family. Ali and Jason's dad finally gives them a little bit of info on the mysterious Charles. Then, with the liars' help, they go digging for clues at their home and, of course, at the now-closed Radley.
WWE Tough Enough. 8pm on USA. This show is the best thing to happen to wrestling fans since Total Divas! Some WWE greats including Chris Jericho, Daniel Bryan and Hulk Hogan host and guest star on the competition series that will train up-and-coming wrestlers and at the end, give two winners (one Superstar, one Diva) a $250,000 WWE contract.
The Real Housewives of New York City. 9pm on Bravo. The women take their annual trip, this time to Turks and Caicos, where tensions continue between Bethenny and Kristen and Sonja accuses Ramona of being, well, whatever the opposite of slutty is.
Extreme Weight Loss: Love Can't Weight. 9pm on ABC. The twist this season is that the experts will help three couples lose weight and get in shape for their weddings. David Tutera, Rocco DiSpirito and Duff Goldman help with the planning.
Kate Plus 8. 10pm on TLC. It's Kate's 40th birthday, so of course the big 4-0 is going to be documented with a special on TLC.