The one that has always got me is 'Heartbeat'. They go to great lengths to have the right Corn Flakes boxes, and accurate prices in the pub, but passenger trains on a North Yorkshire branch line are hauled by a Schools running tender-first.
Mrs D hates it when I find these, and groans at my "battle cry" ("Objection")
Heartbeat is full of anacronisms (sp?):
Some of the songs that are played in the background are clearly not of 60's origin. Namely, Paranoid - Black Sabbeth turns up once or twice despite it not being released until August 1970, and Lynard Skynard - Free Bird which was recorded on April 3rd 1973 and released in November 1974 (4 Years after the intended time frame).
One episode depicts the moon landing, which took place on July 20th 1969, in the same episode as depicting a steam hauled train, as we all know steam ceased on BR on 11th August 1968 with the Fifteen Guinea Special. Also an A4 in Express Passenger Blue seems to be a regular performer through Aidensfield, a bit overkill for the 4 Mk1's it was hauling.
Other programs and films I have seen that are set in the 60's - 80's don't seem to be able to get rid of those green boxes that cropped up on every street corner in the mid 90's, and in a drama about the great train robbery there was a Mercedes Sprinter, clearly visable in one of the streets they filmed in.
I seem to remember a camera being clearly visable, reflected in a door in Titanic.
In Murdoch Mysteries Insp. Brakenreid can't seem to decide which part of Yorkshire he is from, he has reported being from Sheffield, Barnsley and Doncaster.