Evil Abed is a reference to season 3 episode 4 "Remedial Chaos Theory."
Dean Pelton: Ok, I don't know who told you pouting was an option for you, but all you're making me feel is hatred of Renee Zellweger
Original International Air Dates:
Canada: March 22, 2012 on Citytv
Sweden: December 17, 2012 on TV6
Czech Republic: February 21, 2013 on SMICHOV
Chang talking to his new recruits in front of the Greendale flag references the opening scene of Patton.