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:

[youtube http://www.youtube.com/watch?v=-Ib86ZmUBOY?feature=player_embedded&w=450&h=360%5D

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

[youtube http://www.youtube.com/watch?v=0_oF93Kck0I?feature=player_embedded&w=450&h=360%5D

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

[youtube http://www.youtube.com/watch?v=IXzz31otZ4w&w=450&h=315%5D