Scrubs Scrubs is a medical - themed sitcom which debuted on NBC in 2001 , focusing on three interning doctors and their adjustments to the pressures of hospital life , as well as their interactions and rather eccentric superiors . The show later moved to ABC in 2009 for its eighth season . It ' s a Very Merry Muppet Christmas Movie . " Scrubs " was one of several NBC series referenced in the 2002 TV - movie " It ' s a Very Merry Muppet Christmas Movie " , which debuted on that network . After quitting her job at The Muppet Theatre , Miss Piggy is found on the set of " Scrubs " . However , Piggy isn ' t a guest star on the show - - she ' s an extra , playing a dead body . Series regulars Zach Braff ( Dr . John " J . D . " Dorian ) , Sarah Chalke ( Dr . Elliot Reid ) , Judy Reyes ( Nurse Carla Espinosa ) , John C . McGinley ( Dr . Perry Cox ) , Neil Flynn ( The Janitor ) , and creator / producer Bill Lawrence appeared as themselves . " My ABC ' s " . The " Sesame Street " Muppets appeared in the eighth season episode " My ABC ' s " on January 27 , 2009 . The episode was written and directed by Bill Lawrence . In the cold opening , J . D . watches " Sesame Street " with Turk and his daughter Izzy ( " It ' s a good one . The letter ' s J " ) . As J . D . notes , " I grew up on the street . No , not the hood . The " Sesame Street " , " so the Muppets appear in J . D . ' s fantasies throughout the episode . In the first one , Oscar the Grouch has been appointed the new chief of medicine and pops out of the janitor ' s cart : " I ' ll be watching you , John Dorian ! My eyes never close ! " The fantasies interrupt J . D . ' s adjustments to his aggressive , less than empathetic intern Denise ( while treating a young father dying of lung cancer ) , as well as his new beard . Grover ( as Dr . Grover , M . D . ) confirms J . D . ' s belief that " chicks dig on the extra fuzz " and asks for a high - four ( since he only has four digits on his hand ) . The Todd eagerly complies , resulting in a demonstration of near and far as Grover is flung against the wall . A third features an orange monster , whose x - ray results reveal a hand reaching into his skull : " That explains so many things . " Returning to reality after the latter , J . D . asks Turk if he ' s been having fantasies about Muppets all day too , to which Turk replies " no , I ' m straight " ( which J . D . says is uncalled for ) . Finally , J . D . ' s struggle to teach compassion to Denise culminates in the manifestation of Elmo , who volunteers his services . When introduced to Denise , Elmo goes " Hubba hubba " before taking on the role of patient ( in a child ' s patient smock ) . In J . D . ' s mind , this results in dancing and hugs , though he ponders , " What is Elmo ? A seal ? " In the closing scene , the more downbeat reality is underscored by a slow version of the Sesame Street theme ( sung by Joshua Radin ) . J . D . ' s closing monologue pinpoints the subconscious rationale behind his fantasies , as well as the lessons Denise ( and her fellow interns Katie and Ed ) still need to learn : To promote the appearance , Elmo and Zach Braff appeared in an online promo . Connections . In addition to the aforementioned cameos , several performers with Muppet / Henson connections have appeared on the series .