jul 21, 1973 - Mars 4
Failed Mars orbiter attempt (successful as a flyby) (USSR)
The microchip problem caused the failure of the Mars 4 orbiter to fire its orbit insertion rockets. It flew by Mars at a distance of 2,200 kilometers (1,370 miles), taking one set of images and collecting limited data. It continued to function after the flyby, returning data from solar orbit.
Added to timeline:
the videos are in the parts of Mars Exploration Rover Spirit...