A Knight in Camelot is a 1998 television film starring Whoopi Goldberg and Michael York, directed by Roger Young, and loosely based on Mark Twain's 1889 novel A Connecticut Yankee in King Arthur's Court.
Scientist Vivien Morgan is zapped back to the medieval age and time of King Arthur and Camelot, when her scientific machine malfunctions.
She is sent back along with many objects from her desk, including her laptop and boom box.
As she is sentenced to be burned at the stake, she discovers among the laptop-data, that there will be a solar eclipse in short time.
She soon begins constructing devices that will not be present for many centuries, she saves the king, defeats Sir Sagramore and saves the day countless times before being zapped back to the present.