Check for Provide an accessible overview (MOS:INTRO): Done
Major Point 1: Plot "The series follows the adventures of Finn (voiced by Jeremy Shada), a human boy, and his best friend and adoptive brother Jake ... has trapped them and wishes to marry Bubblegum." (not a concise summary of the Plot section, it ends abruptly at "wishes to marry Bubblegum")
Major Point 2: Production "The episode was written and storyboarded by Cole Sanchez and Rebecca Sugar, from a story by Patrick McHale, Kent Osborne, and Pendleton Ward." & ""Lady & Peebles" featured the return of Takei, ... Eternal Darkness: Sanity's Requiem and the 2010 game Amnesia: The Dark Descent. " (summarised well in the lead)
Major Point 3: Reception " "Lady & Peebles" was watched by 2.754 million people and received largely positive critical attention." (not a concise summary of the Reception section)
Check for Relative emphasis: Done
Major Point 1: Plot "The series follows the adventures of Finn (voiced by Jeremy Shada), a human boy, and his best friend and adoptive brother Jake ... has trapped them and wishes to marry Bubblegum." (the lead gives due weight as is given in the body)
Major Point 2: Production "The episode was written and storyboarded by Cole Sanchez and Rebecca Sugar, from a story by Patrick McHale, Kent Osborne, and Pendleton Ward." & ""Lady & Peebles" featured the return of Takei, ... Eternal Darkness: Sanity's Requiem and the 2010 game Amnesia: The Dark Descent. " (the lead gives due weight as is given in the body)
Major Point 3: Reception " "Lady & Peebles" was watched by 2.754 million people and received largely positive critical attention." (the lead does not give due weight as is given in the body)
"Lady & Peebles" is the nineteenth episode of the fourth season of the American animated television series Adventure Time. (Lady & Peebles should be in bold)
Check for Format of the first sentence (MOS:BOLDTITLE): Done
Check for Proper names and titles: Done
Check for Abbreviations and synonyms (MOS:BOLDSYN): None
"the valentine from Hell".[2] (Check on source 2, inaccessible)
"always welcome on this series, largely due to Takei’s delightful voice work."[3] (Check on source 3, successful, "Ice King’s anthropomorphized heart voiced by George Takei is always welcome on this series, largely due to Takei’s delightful voice work.")
"there’s a theatrical smarminess to his vocals that is a stark contrast to the Ice King’s nasality" ...[3] (Check on source 3, successful, "There’s a theatrical smarminess to his vocals that is a stark contrast to the Ice King’s nasality,")
"Takei always sounds like he’s having a great time reading the ridiculous lines that are written for him."[3] (Check on source 3, successful, "and Takei always sounds like he’s having a great time reading the ridiculous lines that are written for him. ")
"dominates this episode" ... [3] (Check on source 3, successful, "Princess Bubblegum dominates this episode, whether she’s shooting explosive rounds out of the Ball-Blam-Burgler-Ber or beating the shit out of Ricardio. ")
"episode reveals a side of her that we rarely see, and hopefully we’ll get more of badass PB in the future."[3] (Check on source 3, successful, "PB’s response: “You didn’t.” This episode reveals a side of her that we rarely see, and hopefully we’ll get more of badass PB in the future.")
"memorable" ... [10] (Check on source 10, inaccessible, subscription required)
"Storyboarding in an Animated Television/Broadcast Production" ... [11] (Check on source 11, successful, Storyboarding in an Animated Television/Broadcast Production ... Cole Sanchez, Rebecca Sugar ‘Adventure Time: Lady & Peebles’ – Cartoon Network Studios)
Check for Likely to be challenged: Done
Check for Contentious material about living persons (WP:BLP): NA
Image 1 (George Takei by Gage Skidmore.jpg): This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. This version permits free use, including commercial use. Hence this image complies with The license must permit both commercial reuse and derivative works.
Check for copyright status: Done
Image 1 (George Takei by Gage Skidmore.jpg): Free.