In the scene between Chuck and Jack, Bart's brother talks about having been posted to Australia by his "dear brother" which is something clearly inspired by Season 6 of Dynasty (1981) , in which character Ben Carrington, played by Christopher Cazenove, surfaced out of nowhere, not satisfied with his lot running a Carrington enterprise in Australia, and feeling he was cheated out of his rightful share.
On the desk, in the office of Bass Industries, there's a childhood photo of actor Ed Westwick (Chuck Bass) sitting amongst the other framed photos.