(ALL TIMES ET)

9PM | ABC FAMILY – SERIES FINALE
Greek – It’s graduation day for the cast and crew of Greek, as the college dramedy wraps its four-season run tonight. The good news is that we can expect resolution on the show’s ongoing storylines: the Kappa Taus try to stop their house from being demolished, Casey and Cappie realize what their future holds and Cappie and Evan decide whether or not their friendship is meant to last.

8PM | ABC
The Bachelor: The Women Tell All – A.k.a., the crazies return and rip into Brad.

8PM | NBC
The Event – It’s back with a new two-hour episode, and Virginia Madsen joins the cast as an Alaskan senator who’s threatening to go on Hardball and let Chris Matthews and his viewers know about the secret detention facility.

8PM | FOX
House – Dream sequence alert! But don’t groan; this one’s musical, with choreography.

8PM | ABC FAMILY
Pretty Little Liars – The girls have been feeling so guilty about their own issues that they didn’t realize just how many other townsfolk have major secrets of their own. Until tonight.

9PM | FOX
The Chicago Code – Alderman Gibbons’ help is solicited when a teen boy is murdered while spreading his church’s message in Chinatown, and the locals refuse to cooperate.

9PM | COMEDY CENTRAL
It’s Always Sunny in Philadelphia – Tonight’s four-episode block includes “The Gang Gets Whacked,” parts one and two, the episodes where Charlie finds and must bid adieu to his beloved Peter Nincompoop. Classic Charlie Day.

10PM | BRAVO
Bethenny Ever After – Jason and Bethenny plan a date night, but they’re still dealing with tension about his family, especially after he suggests another visit to his parents’ house in Pennsylvania.

Worth flipping to during commercials:
– It’s the second season premiere of Too Fat for 15: Fighting Back on Style (8PM);
– Adam tours the Ben & Jerry’s factory on Kid in a Candy Store (8:30PM, Food Network);
– Connie and Larry decide to be each other’s wingmen on Mad Love (8:30PM, CBS);
– The gang makes a life-size replica of a table hockey game, with movable players, on Cake Boss (9PM, TLC);
– Heather Locklear plays a woman who tries to save her marriage after both she and the hubs are unfaithful in He Loves Me (9PM, Lifetime);
– An eight-year-old gets a killer rock-n-roll-themed bash on Outrageous Kid Parties (9:30PM, TLC);
– Nelly‘s the subject of a new Behind the Music (10PM, VH1);
– A former college football star battles weigh gain on Heavy (10PM, A&E);
– On Pawn Stars (10PM, History), we find out how much money Houdini’s handcuffs and a Super Bowl trophy would fetch;
– The Shat chats with Ed Asner on Shatner’s Raw Nerve (10PM, Bio);
– Daisy tries to clean up her friends’ problems on Skins (10PM, MTV);
– Stargate Universe (10PM, Syfy) returns as Chloe tries to buy her cohorts time by contacting the aliens who abducted her.

And the late-night line-up:
– Conan (11PM, TBS): Seth Green and Jayma Mays;
– The Daily Show with Jon Stewart (11PM, Comedy Central): Senator Rand Paul;
– The Colbert Report (11:30PM, Comedy Central): Joshua Foer;
– The Late Show with David Letterman (11:35PM, CBS): Betty White and The Script;
– The Tonight Show with Jay Leno (11:35PM, NBC): Amy Poehler and The Situation (REPEAT);
– Lopez Tonight (Midnight, TBS): Donald Glover and Forest Whitaker;
– Jimmy Kimmel Live (12:05AM, ABC): Owen Wilson, Kelly Ripa and Adele (REPEAT);
– Late Night with Jimmy Fallon (12:35AM, NBC): Ricky Martin, Minka Kelly and Dana Carvey (REPEAT);
– The Late Late Show with Craig Ferguson (12:37AM, CBS): Aaron Eckhart;
– Last Call with Carson Daly (1:35AM, NBC): Thomas Lennon (REPEAT).