When Lee Majors is in a record store, we see Bon Jovi's "7800° Fahrenheit" album. Bon Jovi's released that album in 1985.
The September 26, 1976 clip of a Nielsen household shows Jimmy Carter stepping off Air Force One but he had not yet been elected president on this date.
The air dates shown on screen for the first season of Charlie's Angels (1976) are all mixed up. A clip of Sabrina racing in Hellride (1976) is shown with air date 29 September 1976, while it was shown a week earlier, September 22nd (this date is also shown, but without an actual clip). The next date on screen is October 6, 1975, on which there was no broadcast. This is accompanied by clips recreating scenes from Lady Killer (1976) (November 24, 1976) and Night of the Strangler (1976)(October 13, 1976). After that this last date is shown accompanied by a non specific scene.
TAB diet soda had a pull tab, not a push top.
In the scene where the Aaron Spelling character meets Farrah's manager in the park, he looks at his Rolex watch for the time and each second ticks by as he waits. Rolex watches have a sweeping second hand and never tick.
The sound mixing board used to record the Charlie voice over did not exist in 1975-76.