Peter Pan with Mary Martin Question

[Tvlman]

I have an old vhs recording of Mary Martin as Peter Pan. I was going to convert it to dvd to show to my grandkids. In reviewing it I noticed there is no ACTIII. After Act II the next posted act is ACTIV. Does someone out there have the same recording? If so, do you have an ACT III? I'm wondering if this is the complete videotape copy of the 1960 broadcast or did someone edit it? Or was this an error during the live  1960 broadcast? It runs 1 hr. 40 minutes.

[Mustrum_Ridcully]

The Running Time of 100 minutes seems to be correct according to IMDb.
Probably it's just an error in the numbering of the Acts.