Marvel's Luke Cage: 44 Easter Eggs You Probably Missed
19. "I'm Not For Hire"
At the end of the very first episode, after Luke has saved his landlords from Cottonmouth's heavies, they try to hire him for protection. He comically says "I'm not for hire, but you have my word ma'am, I've got you."
Well, you are, Luke. Or you will be.
Luke Cage was first introduced in 1972 as Luke Cage: Hero for Hire before he took on the Power Man name. He also uses the Heroes For Hire label when he's teamed up with Iron Fist.