I checked the NY Daily News TV schedule for each weekday of the 16-week run, and “Go!” was indeed preempted twice — Thursday, 11-24 and Monday, 1-2.
My hypothesis — which is only that — is maybe they skipped a production number to account for Thanksgiving and to maintain the pattern of Monday shows ending in 1 or 6, Tuesday in 2 or 7, etc. Also, the second of the two soap opera weeks was planned for airing the week of 11-28. These were aired out of order, so maybe it was thought that airing #44 on Friday, then going back to #26-30, then the pattern shifting to #45-49, would be a source of confusion.
By mid-December, with the show canceled and not having any more out-of-order weeks, there was less reason to skip a number for the day after New Year’s.
(For anyone who cares, other NBC daytime preemption notes from those holidays: the entire schedule was preempted 11-24. On 11-25, cartoons aired from 10 to noon, then regular programming resumed. On 1-2, “Facts of Life” repeats returned at 10, then “Sale of the Century” aired, then the Rose Bowl parade and football took over.)