Question: Given how long it ran and its popularity, was there ever talk of a crossover with Dynasty regardless of different networks?
Question: Why does everyone put up with JR? Why not throw him off the ranch and out of the company?
Answer: In real life, that might happen, but this is a fictional TV show that revolves around the characters and the dynamic interaction between them. Getting rid of JR, a main character that much of the story line revolves around, would make the show far less interesting, less melodramatic, and less intriguing. It's just an entertaining, over-the-top exaggerated soap opera.
Answer: No, back then such things were unheard of. Too much politics, contract disputes and what would the characters do if they met.