This Halloween show from 1979 is rarely ever broadcast. The host of the 1999 wrap-arounds is Ken Delo (died 2016) who gets a good deal of time in, including future concert dates, a solo, and a backround song from "Phantom of the Opera" for the closing credits.
It opens with a costumed cast, which somehow changes wardrobe quickly for the next numbers, then back into costume again. Which implies some prerecording of songs. There is the usual lip syncing; Arthur's tap dance is done with no taps on his shoes, syncing there too. One other observation is Ralston without a wedding ring, marital strife was not uncommon on the show, witness Guy and Ralna.
As with other Halloweens, finding appropriate songs was a problem, while vocal numbers in some became instrumentals here.
All in all, not too bad for the late years of the series.