When watching the opening credits for "Hello Megan", one of the names visible is Rita Farr, also known as Elasti-girl from the Doom Patrol, who was an actress before her incident. In fact, all of the supporting cast are in-universe actors that have appeared elsewhere in the DC multiverse: Paul Sloane was an actor hired to portray Two-Face, ultimately becoming a criminal, himself; Jonathan Lord was an actor from the Golden-Age of Hollywood, who became the hero Silverblade; Sandra Stanyon is Lord's love-interest.
After watching the television show "Hello Megan", Conner realizes that that was where M'Gann got the idea for his name. In the comics, the name Conner was a human equivalent to Superboy's Kryptonian name "Kon-El."
Wally's souvenir the tape of "Hello Megan"
The creators of the "Hello Megan" TV show are Brandon Weisman and Greg Vietti, a spoof of real-life staff members Brandon Vietti and Greg Weisman.
The events depicted occur on November 22nd and 23rd.