When Coulson is showing Price his S.H.I.E.L.D. memorabilia, he says he has a real soft spot for the golden age. This is a reference to Marvel's Golden Age where S.H.I.E.L.D was first created.
"Fly the friendly skies" was the United Airlines advertising tagline from 1965-1996.
"Many Heads, One Tale" originally aired on ABC on November 17, 2015, and according to Nielsen Media Research, was watched by 3.60 million viewers.