“So it turns out Kramer’s phone number (555-FILK) is just one number away from the Moviefone number (555-FILM.) Where most people would just change their number, Kramer sees a business opportunity and takes action. What time is Firestorm playing, sir?”
https://www.youtube.com/watch?time_continue=5&v=N_jLykcWPn0
Never watched Kramer. You don’t pick a number like that accidentally, and I know of no definition for filk other than the amateur singers singing about TV and movies, which has been around for decades. Interesting.