This episode broke the record for a tv premiere with 15.8 million viewers
Mike (Jonathan Banks) works for SMQ parking (see the logo on his work shirt). The name is a nod to Steven Michael Quezada who played Steven Gomez in Breaking Bad (2008).
While wanting the show to honor the look of Breaking Bad (2008), show creators Vince Gilligan and Peter Gould didn't want the show to feel like Breaking Bad (2008).
Saul (Bob Odenkirk) lives on the same street as Gale in Breaking Bad (2008), on his mail in the first episode it shows that he lives at 160 Juan Tabo NE.
The key fob that Saul Goodman (Bob Odenkirk) places in his brother's mailbox before entering his brother's home is the same model of key fob used by Walter White (Bryan Cranston) in Felina (2013) to operate the machine-gun rig in the back of his car.