It had to happen… eventually. One has a rainier wolf castle, while the other…
Personally I had always thought The Big Bang Theory would beat The Simpsons to it. (But then a lot of TBBT’s unearned geek-cred comes from throwing in passing interchangeable "[INSERT NAME OF SF/ FANTASY FRANCHISE HERE - Battlestar, Firefly, Caprica, etc]" references. Whereas Simpsons tends to actually engage with the content of what they’re parodying/ homaging… Or maybe it is GoT that is doing the homaging. Compare C Montgomery Burns with the Mad King Aerys Targaryen, for example… And has anyone ever seen the two Ms Van Houtens together in the same room?