The Simpsons in 2012 is a largely irrelevant force. Still, from time to time it at least tries to appear relevant. Which is why, in tonight's episode, there's a fairly obvious Portal reference.
While Portal 2 came out almost a year ago, these shows aren't exactly made overnight, so I guess this is timely? It's also not bad, though obviously we'd need to see the whole/actual clip (something Fox isn't usually very good about letting the internet share, especially YouTube) to determine whether there was a blue portal laid down first.
Simpsons Portal [Reddit]