Looking at the code, there is an option in New Horizons to disable/enable videos in InternalSettings.h. Set it to value 1:
#define ENABLE_VIDEOS 1
I made some various changes, but I still can't load a FreePlay game because the location doesn't load due to missing location model elements. But it should probably fix your telescope. As for the other stuff, it might be options similar to the video, but I am unfamiliar with New Horizons options and what they all might do.
Program.zip from: https://mega.nz/folder/DtcEmR6C#pjia47ERTPh1EoLClQMfOg