The Lisa Kudrow multiverse opened wide during *The Comeback *Season 3, episode 2, as Kudrow's fictional sitcom star Valerie Cherish made a blink-and-you'll-miss-it reference to *Friends*. The reference comes during a production meeting for *How's That?!*, Valerie's new, AI-written multi-cam sitcom. She wants to bring legendary TV director Jimmy Burrows (playing a fictionalized version of himself) on for *How's That?!, *having worked with him on *Room and Bored *back in Season 1. SEE ALSO: 'The Comeback' Season 3 review: Lisa Kudrow warns us of the AI apocalypse According to *How's That?! *showrunners Mary and Josh (Abbi Jacobson and John Early), they heard from Jimmy's agent that he passed on the project. "Agents say 'no' to everything," Valerie says. "If it were up to his agent, Jimmy wouldn't have done *Cheers.* Or *Will & Grace. *Or *Frasier. *Or *Fri*—" Mary cuts Valerie off before she can say *Friends*, resulting in a fun wink to the audience about other sitcoms of Kudrow's past.…