This is the only episode where John Posey portrays Danny Tanner.
After Bob Saget was hired to.replace John Posey, the parts of this unaired pilot with Posey were reshot while the others were left intact. As a result, the babies who portray Michelle are noticeably older in scenes with Saget than in ones without him (such as the diaper changing scene).
This episode is included in the complete series DVD set.