Saturday evening, C-SPAN broadcasts coverage of the annual White House Correspondents’ Association Dinner (at 6:15), featuring the event’s entertainment, comic Conan O’Brien, along with remarks from President Obama; CNN’s coverage starts at 9.

Lifetime Original Movie “A Sister’s Revenge” (Lifetime at 8) doesn’t tell us why this woman wants revenge, but it starts with her seducing a happily married restaurateur.

Kathie Lee Gifford performs a musical number on “Smash” (NBC at 9); in an unrelated note, Tom and Julia talk about splitting up as producing partners.

Sunday talk-shows: “Platts Energy Week” (WUSA at 7:30 a.m.) interviews Sen. Chris Coons (D-Del.), Energy Minister of Trinidad & Tobago Kevin Ramnarine and Lockheed Martin’s Dan Heller; “This Week in Defense News” (WUSA at 8) has Center for Strategic and International Studies’ Anthony Cordesman and National Defense University’s T.X. Hammes; “BioCentury This Week” (WUSA at 8:30) features Avalere Health’s Dan Mendelson, GlaxoSmithKline’s Martin Marciniak and Pfizer’s Gail Cawkwell; “Fox News Sunday” (Fox at 9) hosts Sen. Joe Manchin III (D-W.Va.), Rep. Mike McCaul (R-Tex.) and Israeli Ambassador Michael Oren; “White House Chronicle” (WETA at 9) has SiriusXM Satellite Radio’s Joe Madison; “State of the Union” (CNN at 9) features Reps. Marsha Blackburn (R-Tenn.), Jason Chaffetz (R-Utah), Bennie Thompson (D-Miss.) and Debbie Wasserman Schultz (D-Fla.).

“The Chris Matthews Show” (NBC at 10) hosts The Post’s Bob Woodward, New York Times’s Elisabeth Bumiller, Time’s Michael Duffy and CNN’s Gloria Borger; “This Week” (ABC at 10) features Reps. Mike Rogers (R-Mich.), Dutch Ruppersberger (D-Md.) and Jan Schakowsky (D-Ill.); “Newsmakers” (C-SPAN at 10) talks to Rep. Adam Smith (D-Wash.); “This Is America & the World” (WETA at 10 and WHUT at 6 p.m.) talks to Hong Kong Economic & Trade Office’s Donald Tong; “Meet the Press” (NBC at 10:30) has Sen. John McCain (R-Ariz.), Reps. Peter King (R-N.Y.) and Keith Ellison (D-Minn) and former British prime minister Tony Blair; “Face the Nation” (CBS at 10:30) talks to Sens. Saxby Chambliss (R-Ga.), Claire McCaskill (D-Mo.) and Lindsey Graham (R-S.C.); “Washington Watch with Roland Martin” (TV One at 11) hosts Rep. Bennie Thompson (D-Miss.), Philadelphia mayor Michael Nutter (D) and Lt. Col. Myles B. Caggins; “Bloomberg Government’s Capitol Gains” (WUSA at 11:30) has Sen. Chuck Grassley (R-Iowa) and U.S. Chief Information Officer Steve VanRoekel.

Will Peter be named governor? Will Cary strike out on his own with a new law firm? “The Good Wife” (CBS at 9 p.m.) wraps up Season 4 with an answer — or maybe with a cliffhanger, as the show has been renewed for a fifth season.

Tyrion learns a thing or two about weddings on “Game of Thrones” (HBO at 9); meanwhile, Robb suffers a betrayal.

— Emily Yahr