"I can I am I will" episode number

[Aaendi]

In another thread, somebody posted an old film reel of a Mister Roger's Neighborhood episode, but the opening and closings are cut off, and there is a strange title card that says "I can I am I will, starring Fred Rogers."  Does anybody have any new research about this misterious episode.  Did it have an episode number, or was it an hour long special like "Mister Rogers Christmas."

[earnhardtfan4life]

That I believe was just a promotional film strip that Family Communications produced.  I think it does include a portion of a pre79 NOMB segment on it.  Along the same lines as the MRN promotional hospital materials that Fred wrote - Going to the hospital, having an operation, etc.  It is amazing when you think of it; that Fred was thinking that far ahead.  Now you have Sesame Street producing videos for military families to use. 

Mike

[Aaendi]

The NOMB segment looks like the NOMB segment in episode #1347, but I don't see any segment taking place in the garage.

What is a promotional film used for?