Factual error: Jack listens to an interview with the fictitious novelist Frank O'Toole who appeared on BBC 4's Radio Island Discs. The episode is labeled "Fri 9 Nov 1989", but November the 9th in 1989 was a Thursday, not a Friday. (00:16:00)
Murder on the Day of the Dead - S7-E5
Factual error: The story is set in February 2018, but when Jack and Florence go talk to Hugh Davenport, he is reading the latest finance news.from the May 4th 2017 newspaper. (00:32:50)
Murder on the Day of the Dead - S7-E5
Factual error: The 1966 Ford Mustang 289 belonging to the victim has registration plates from Hawaii, but "DY 536 HR" does not follow the correct format for Hawaiian license plates at that year, or any year for that matter.
Answer: Most likely they had only tropical exotic drinks, he wanted an old fashioned English beer.