True.

I could just take my final project (of mixing together the two encodes) and slow it down.

I wonder by how much that would increase the total time for the episode? I have heard the conversion for a 2 hour movie adds on about 5 minutes to the total run time. The runtime for this episode is about 47 minutes. So this would probably add a little over 2 minutes?

The original commercial VHS tape wasn't a PAL speedup (as far as I can tell). This was a PAL blend from 29.97 -> 25. So we would effectively be altering the run time.

It is food for thought...and something I may wind up doing.