 Since 1997, a slightly truncated new color version of the original opening  and closing credits have been added to first and second season episodes  airing on some stations. In addition, the Laserdisc versions of first season  episodes have the complete color credits that include the ABC network logo  (stone age version!) at the very end. It is widely believed that the only  complete, uncut versions of the first and second year episodes complete with  commercial promos exist as 16 mm black and white prints in the hands of a few  collectors.