As you know, all known episodes of the criminally short-lived Morton and Hayes is on YouTube, all that is except the pilot (Partners in Life) as detailed on the wiki for the show "A pilot for the series, then called Partners in Life, was shown on August 31, 1990. In this pilot, Kevin Pollak (who would play Chick Morton in the actual series) played Eddie Hayes, while Joe Guzaldo played Chick Morton. As in the series, Reiner introduced the show ... but here in the character of "Max King III", the grandson of the producer of the original Morton & Hayes films. The faux-40s Morton & Hayes film shown in this pilot was in color, not black-and-white, and according to Reiner, the comedy duo was more of a "Hope–Crosby type team“ in this pilot than the Abbott & Costello, Laurel And Hardy, or Olsen & Johnson-like team of the subsequent series."
If anyone has a copy of this pilot film, please post it on YouTube or Internet Archive