[googlryas]

Better Call Saul had real phone numbers which you can call and get a little prerecorded clip which ties into the show. Almost every time these numbers were not a main focus of the single shot they appeared in - most people wouldn't even notice them.

Short list:

Need an Attorney? Better Call Saul! [phone]

Need a Will? Call McGill! [phone]

Retirement Funds Drained? Call Davis & Main! [phone]

Want a Gangster who’s macho? You got Nacho! [phone]

Tips are Frail? Go to Day Spa & Nail! [phone]