My Life as a Teenage Robot, or Teenage Robot (abbreviated as MLAATR), is an American animated superhero comedy television series created by Rob Renzetti for Nickelodeon. It was produced by Frederator Studios in association with Nickelodeon Animation Studio. Set in the fictional town of Tremorton, the series follows the adventures of a robot girl named XJ-9, or Jenny, as she prefers to be called, who attempts to juggle her duties of protecting Earth while trying to live a normal human life as a teenager.
On May 30th 2021 a user called zpc7 upload My Life as a Teenage Robot in 16:9 (widescreen) so generally it can exist MLAATR widescreen cut, but its only intro, no episodes has been found in widescreen, however, it’s likely that only the intro was made in widescreen.
link: https://www.youtube.com/watch?v=dQmzeJzoinA (Taken from HomieImBack's comment)
link to the version without reducing the screen: https://drive.google.com/file/d/1Gxzt4ihT3_jsTxY9bSow_CbPXXsJkbr_/view (NOTE: it has the KineMaster watermark and poorer quality)
Edit As of 2025: there were a bunch of things that had misinformation about the whole 16:9 thing. Just to confirm this, Rob has stated and confirmed in twitter/X that the show was never made in 16:9 (source: https://twitter.com/RobRenzetti/status/1929032608727380009?t=cN3X3aXrINFiSThf9gixVA&s=19). And as for "Zpc7", that user never made that intro in 2021. It has been upload without crediting it. The real person who made the intro is a user by "Trevok". He did the intro in 2019 (source:https://twitter.com/Trevok2/status/1194838355479007233?t=YZa3sm9RVV3v11BlLzT24A&s=19) . As of right now A user called "XJ9 Archive" Has asked permission from "Trevok" to upload the intro and the first 4 mins of the episode "It Came From Next Door" which can be seen on youtube (Source: Intro with 1080p, no lag https://youtu.be/sgkI84InRPk?si=ftHEWtE_ZAJ31NXx)
(Source: The first four mins of "it came from next door" https://youtu.be/uUqu_qT2-9o?si=tK_iHM4zhRKYkT35).