I Only Have Eyes For You - S2-E19
Factual error: In the episode 'I Only Have Eyes For You', during the flashbacks to 1955 James and Grace dance, and James later shoots himself, to the song 'I Only Have Eyes For You', which wasn't released until 1959. (00:18:20 - 00:26:50)
Children of the Gods (1) - S1-E1
Factual error: The escort for Colonel O'Neill is wearing both Major and Staff Sergeant rank insignia. Probably what the writers thought was a "Sergeant Major", which does not exist in the Air Force. Major is a commissioned officer, sergeants are non-commissioned officers.
Yukiyasha Legend Murder Case: File 3 - S2-E16
Factual error: Kindaichi begins his revelations at 4:10, and the time gradually shifts at 4:20 (which is a bit much for the amount of information revealed and the dynamics of the conversation, but okay). He then moves to the river, which is a couple minutes away from the house by car, to deliver the rest of his speech, and the sun dawns at that moment. It's a Japanese winter with -20 C°, the sun surely wouldn't rise at 4 AM. (00:06:30 - 00:12:00)