Factual error: Sierra Nevada beer would not have been available in DC during this time period.
Factual error: Philip is reading an advertisement for the 1982 Camaro and tells Henry about the car. He claims the Camaro has the following specs: "386 horsepower, 4 on the floor, direct overhead cams." The 1982 Camaro had nowhere near 386HP. Obviously he is talking about the Z28 with the V8 engine. The Z28 came in two V8 engine configurations in 1982, with a carburettor or with cross-fire fuel injection. The carburettor version had 145hp and the cross-fire fuel injection version had 165HP. Next he states there is a "4 on the floor." This would refer to the number of gears the transmission had. Philip buys an automatic transmission Camaro in early 1982 (it was winter and snowing). The early year Camaros that year came with 3-speed automatic transmissions. The 4-speed automatic transmissions didn't come out until around spring/summer that year. Also, the 4-speed manual was not available in the 165HP Z28, but was with the 145hp model. Philip got the 165HP version. Finally, "Direct overhead cams." Cams refers to the camshaft. As for the camshaft installed in Camaros in the 80's, it was not overhead, it was not direct contact with the valves, and it was not plural "cams", but instead, one singular camshaft, installed below the cylinder heads, using pushrods to made contact with the valves.
Do Mail Robots Dream of Electric Sheep? - S3-E9
Factual error: The lady in the mailbox robot repair office takes a heart medication. On the medication bottle, it says Lisinopril 40mg 3 tablets per day. Not only is this a drug overdose but Lisinopril became only available in the early 1990s.
Factual error: A German bio-metric passport is shown that was only issued after 2005. (00:14:40)
Factual error: In several episodes, agents are handling biological material wearing blue nitrile gloves. The season takes place in 1983 but these gloves didn't come into use until the mid-90's.
Factual error: The blue Volvo 240 Philip and Elizabeth occasionally drive in season 5 (1984) is from 1986 or later.
Open House - S3-E3
Factual error: A Su-27 model, apparently in the Russian air force aeronautics colours, is shown in front of a window. They were not introduced until 1985.
Factual error: The picture of the shipyard party way into the episode shows the CVN 75 Harry Truman which wasn't even under construction until 1988. (00:16:00)
Factual error: When Philip and Elizabeth are driving in their Volvo after argued with Tuan, the front panel of the car radio is removed, and you can see a CD slot. This was not available in 1984. (00:41:00)
Factual error: The helmet is a Cooper/Bauer HH3000 that wasn't made until 1989 or 1990. (00:26:30)
Factual error: Throughout the first season, set in the early 80s, the two Russian agents are shown carrying and using 3rd version Beretta P92F semi auto pistols. The P92F didn't come out until 1988.
Factual error: A scene shows a Wyoming ANG C-130H with 6-bladed props and a modern striped tail flash. The shown aircraft, tail 37314, was made in 1993 and assigned to Wyoming ANG around 2007. In the 80's the Wyoming ANG had much older C-130B aircraft. The stripe style tail flash didn't come around until the mid-1990s. In the 80's Wyoming C-130's would have had a large black "WY" on their tail. The 6-bladed props didn't appear until after 1999 (first on C-130 J models). (00:03:48)
Factual error: When Elizabeth confronts Sanford Prince in the restroom, there are modern, automatic flush sensor urinals visible. The first automatic flush urinal wasn't invented until 1988. (00:06:46)
Factual error: The mural on the diner wall shows the 21st century Afghanistan campaign medal and operation Iraqi Freedom campaign medal.
Factual error: In nearly every episode shot outside in city neighborhoods just out of the camera's focus you can see so many cars from the late 2000s.
Factual error: When they are playing hockey in the driveway, the FBI agent says he lived in the city in St. Louis. He then says they had street names like 1st street, 2nd street, Washington, Lincoln. First and Second street exist, but they are both in industrial areas and no-one ever talks about them. More to the point, there is no Lincoln Street in St. Louis at all. (00:27:00 - 00:28:00)