Corrected entry: During the episode, it goes back to 1968 and in the closing credits Eric is listed as being 7. However, he can't be because in 'Eric's Birthday' it was 1976 and he had turned 17. Thus in '68 he would have had to be 8 or 9 (depending on his birth) but certainly not 7.
Corrected entry: In the house basement or wherever the teens hangout. Right next to the entrance door hangs a smoke detector. This TV show is supposed to take place in the late 1970's but smoke detectors were not available for homes until the late 1980's to early 1990's.
Correction: The first commercially successful smoke detector was available in the 50s, and by the early 70s hundreds of thousands were sold a year: http://www.mysmokealarmla.org/history-of-smoke-alarms/.
Love, Wisconsin Style - S4-E27
Corrected entry: Eric Mentions Sue Ellen from Dallas. However, even taking into account the time that's passed since the series began, Dallas had not yet made its 1978 premier.
Eric's Corvette Caper - S4-E22
Corrected entry: When Red tells Eric he can drive the car, and they are sitting in it together, Eric turns on the ignition and the stereo can be heard. That is how Red knows Eric drove it and grounds him for a month. But, earlier when Eric moved the car back into the garage before his dad came home, he would have heard the stereo blaring.
Correction: Hearing the radio blaring and having the presence of mind to turn it off are two different things. He was probably so used to the radio in his car that it just didn't register that it was on. Besides which, this is a character mistake, not necessarily a mistake for the show.
Corrected entry: The actors playing Eric, Hyde and Kelso at a younger age are all credited as playing them at the age of 7 and 13 but we found out earlier in "Halloween"(episode 30) that Kelso is actually a year older than them so the actors playing him at the age of 7 and 13 should have been credited as playing him at the age of 8 and 14.
Correction: At the ages of 7 and 13, everyone thought that he was their age, not a year older, so at that time he would have been saying that he is the same age.
Corrected entry: In the episode, it flashes back to 1968 so Eric would be about 8 or 9 because you know that in 1976 he turned 16, so he would be born in 1959. However it says in the closing credits 'Eric aged 7'. How can he be 7?
Correction: Born somewhere in 1960, he would turn 16 in 1976. Prior to his birthday in 1968, he'd be 7.
Corrected entry: In episode 1 "Pilot" Donna says "you could have had me when I was four". But in this episode they first met when they were seven.
Correction: It was a figure of speech. Even if she was trying to get the age exactly right, this is a character mistake if anything.
Corrected entry: Jackie is younger than the other characters so while the actors and actresses are credited as playing them at the age of 13 she is credited as playing her at the age of 12 but while the other actors and actresses are credited as playing them at the age of 7 she's credited as playing her at the age of 5 when should of been credited as playing her at the age of 6.
Correction: Jackie might not be exactly a year younger than everyone. She might be a bit more than a year younger.
Corrected entry: Hyde says that he could be drafted into the military after his eighteenth birthday; however, this episode is set in 1978, several years after the US military draft was quietly discontinued.
Correction: Although it had been discontinued, males were still required to register for the draft when they turned 18. I had to sign up in 1980. Although there was no active draft we knew it could be reinstated at any time.
Correction: Eric's Birthday is officially March 5 1960, per the show's website. So he would have been 7, turning 8, in 1968. However, in the show, his birth date is inconsistent and it's for those episodes that a mistake should be listed (such as e01s02).
Bishop73