Today's talk you might've missed:

• You'll need to seriously stock up on doughnuts for this TV marathon. FXX is planning to air every "Simpsons" episode in existence - and there's 552 of them - continuously for 12 days this summer. [Variety]

• In honor of his 88th birthday on April 9, Hugh Hefner wrote a letter to his younger self. It turns out the Hef we know today is all thanks to one young woman who broke his heart as a teenager. [CBS]

• Jennifer Lawrence is so awesome at what she might sway "X-Men" producers to give her character Mystique its own spinoff film. [EW]

• If Stephen Colbert totally rules over Jimmy Fallon at 11:30, at least Fallon could have a great backup career as a musical impressionist. His Tom Petty impersonation, with Stevie Nicks at his side, is a must-see:

• Speaking of David Letterman, we'll miss the days he prank calls Oprah Winfrey with Lindsay Lohan:

• Disney has released its first look at "Girl Meets World," and we're still working through our feelings about it. Thoughts?

Today's talk you might've missed:

• With "How I Met Your Mother" officially in the can for good, Cobie Smulders has all the more time for ABC's "Marvel's Agents of S.H.I.E.L.D." Her by-the-book Agent Maria Hill is going to be back in business as the show wraps its first season. [TVLine]
• Knowing that those re-runs of "The O.C." could only go so far, Adam Brody is returning to the TV form with the Amazon pilot, "The Cosmopolitans." [Deadline]
• Guys, stop trying to put Michael Cera in a box - the man is a thespian! He's making his Broadway debut in "This Is Our Youth" opposite Kieran Culkin and Tavi Gevinson. [THR]
• So Selena Gomez hung out with Justin Bieber at a recording studio Tuesday night ... and she was suspiciously wobbly walking into the entrance. [MTV/TMZ]
• In your afternoon edition of "Naked Celebrities in Magazines," there's Sean Penn and Robin Wright's daughter, Dylan, and Rihanna. Neither of them remembered to wear pants (or underwear) to these photo shoots. [Us Weekly/Gossip Cop]
• As much as we heart the rest of the "Saturday Night Live" cast - Hi Kate McKinnon! - we really wouldn't be that upset if this weekend's show was just Seth Rogen getting razzed by Aidy Bryant.