Louis C.K. dropped by "Conan" with a lot of thanks for his former boss. Conan O'Brien gave C.K. his big break as one of the original writers on "Late Night with Conan O'Brien." He said that were it not for that gig, he would have given up on comedy altogether.


O'Brien thanked C.K. for his kind words by digging up a sketch from O'Brien's very first "Late Night" show back in 1993. C.K. was featured in the episode, though he was barely recognizable. The guest was Bob Costas, who was taking a "loving look back on the classic film 'The Wizard of Oz.'"


Louis C.K. played a tree in the sketch, recreating the classic scene from the film where the trees start throwing apples at Dorothy and her friends. After Costas picked one of C.K.'s apples, he shouted, "How would you like if someone did that to you?” And the throwing began.


From an incognito beginning as a tree, Louis C.K. has certainly done well for himself. He and his show "Louie" are up for an impressive six Emmys. Fans can tune in on Sunday night to see if he wins. Neil Patrick Harris hosts the 65th Emmy Awards on CBS at 8 p.m. ET.


Tune in to "Conan" every weeknight at 11 p.m. ET on TBS.


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  • 'Late Show With David Letterman'


    Airs weeknights at 11:35 p.m. ET on CBS.




  • 'Jimmy Kimmel Live'


    Airs weeknights at 11:35 p.m. ET on ABC.




  • 'The Tonight Show With Jay Leno'


    Airs weeknights at 11:35 p.m. ET on NBC.




  • 'Conan'


    Airs Monday through Thursday at 11 p.m. ET on TBS.




  • 'Chelsea Lately'


    Airs weeknights at 11 p.m. ET on E!




  • 'The Daily Show With Jon Stewart'


    Airs Monday through Thursday at 11 p.m. ET on Comedy Central.




  • 'Watch What Happens: Live'


    Airs Sunday through Thursday at 11 p.m. ET on Bravo.




  • 'The Colbert Report'


    Airs Monday through Thursday at 11:30 p.m. ET on Comedy Central.




  • 'Totally Biased With W. Kamau Bell'


    Airs Thursdays at 11 p.m. ET on FX.




  • 'BrandX With Russell Brand'


    Airs Thursdays at 11:30 p.m. ET on FX.




  • 'The Late Late Show With Craig Ferguson'


    Airs weeknights at 12:35 p.m. ET on CBS.




  • 'Late Night With Jimmy Fallon'


    Airs weeknights at 12:35 p.m. ET on NBC.




  • 'Real Time With Bill Maher'


    Airs Friday nights at 11 p.m. ET on HBO.




  • 'Last Call With Carson Daly'


    Airs weeknights at 1:35 a.m. ET on NBC.