Because first air date is 1986: http://french.imdb.com/title/tt0091724/releaseinfo
But to be released on 3rd Jan, it has to be done in 1985

One remark about picture size: for 4:3 pictures like these, it is better to reduce a little the size, e.g. between 640x480 and 662x496, i.e. keeping the height below 500 pixels to not have too big pictures.
(just a note for the future, pictures posted above are good and can be used as they are, no problem with that)