Beginning Jan. 3, graphical elements across Fox properties will turn yellow for one week to celebrate The Simpsons‘ 20th anniversary, according to the Hollywood Reporter. On-air graphics, Fox’s online presence, social networking pages and on-air promos will all be yellow, and local Fox news anchors will wear yellow ties. On Jan. 10, Fox will air the 450th Simpsons episode and an hour-long documentary special about the series directed by Morgan Spurlock.