The Tell Tale Robot

The Tell Tale Robot is s2e27 and is the first to properly list it's original air date (10 December 2020) in TV guides for a long time! The dozen or so prior to that listed OADs wrongly weeks prior to when they finally came after a delay.

official summary

 * "When Lili's kept awake all night by a strange noise, she accuses Sam of making it."

etymology
the title is based on Edgar Allen Poe's play "The Telltale Heart"