View Photo Gallery: Celebrities and journalists arrive for the 99th annual dinner at the Washington Hilton.

Congratulations Conan O’Brien! Your performance at Saturday’s White House Correspondents’ Dinner averaged 3.3 million viewers across the three cable news networks. 

That means, Conan, that last week, you beat NBC’s entire Thursday lineup, on the first night of the important ratings race known as the May sweep.

Granted, you shared top billing with President Obama, who also addressed the annual Washington power dinner/Hollywood Petting Zoo that’s chock-a-block with Washington luminaries and journalism royalty, as well as the stars of “Duck Dynasty,” Her Royal Barbra Streisand-ness, Michael Douglas, Kevin Spacey, Katy Perry, Amy Poehler, and Gerard Butler, among others.  

Anyway, Conan, your 3.3 mil is more viewers than watched NBC’s Thursday lineup, which had included original episodes of “Community” (2.33 million), an “Office” repeat (1.84 million), an “Office” original (3.25 million), an original “Parks and Recreation” (2.59 million), and original “Hannibal” (2.40 million).

And, Conan, that doesn’t even include those who watched the gala on C-Span, which has telecast the clambake for years. Nielsen does not rate C-Span, so we don’t know how big was its WHCD audience.

(For those keeping score: CNN clocked 1.493 million viewers from 10-11 p.m. Saturday, when Obama and O’Brien entertained the crowd. Fox News Channel averaged 1.114 million and MSNBC 640,000 viewers. Among 25-to-54-year-olds who are the currency of TV news ad sales, CNN (401,000 viewers) averaged more than FNC (183,000) and MSNBC (176,000) combined. Conan, who followed President Obama’s address, wound up his portion of the night’s fun at around 11:04 p.m.)