Tesla CEO Elon Musk joked about how MSNBC would change if he bought it from Comcast. Last week, Comcast announced it will spin off a large chunk of NBCUniversal cable channels, including MSNBC. Donald Trump Jr.

Elon Musk, Donald Trump Jr., and Joe Rogan have joked about the idea of buying MSNBC after Comcast's spinoff announcement.

Can Elon Musk make a run at acquiring MSNBC? It would be a steep climb. One big reason: it isn’t for sale. Last week, Comcast said it was moving forward with a plan to spin off its NBCUniversal cable networks into a separate company.