True colors?
In “The Last Hurrah,” a first-season “Dallas” episode, Sue Ellen (Linda Gray) is behind her desk when J.R. (Larry Hagman) knocks at the door.
SUE ELLEN: J.R.?
J.R.: I just wanted to drop off a little good luck charm, for your campaign. I found Miss Ellie’s pearls when I was packing up Southfork.
He hands her a box as Cliff [Ken Kercheval] enters.
CLIFF: Well, what do we have here? An angel talking to the devil.
J.R.: What’s he doing here?
SUE ELLEN: Well, not that it’s any of your business, J.R., but I heard he was in town and I figured I needed a little political advice.
CLIFF: And I was happy to oblige.
J.R.: Sure was an unpleasant surprise to see you at Southfork last week. You must have been out of your tiny mind to think that Bobby would ever sell the ranch to you.
CLIFF: I will never stop fighting for what is rightfully mine – and I know you are the same way.
J.R.: I’m a changed man, Cliff. Evidence of that is the fact that you’re not being wheeled out of here with two broken legs. Now that Bobby’s sold Southfork, you can go ahead and leave town. Nothing left for you to do in Dallas.
CLIFF: Well, when you have several billion dollars, J.R., you can do whatever you want to, wherever you want. [To Sue Ellen] Shall we?
J.R.: Are you really going to break bread with this lowlife?
SUE ELLEN: You lost your right to have a say with whom I lunch a long time ago.
Dallas Decoder 
This scene between these two sworn enemies with their scowls and scathing glares was more powerful than anything with the younger cast to date. It was epic. Who says you can’t make a show revolving around old people? lol.
Agreed!