It came on while we were watching the Travel Channel one night and, for some reason (I think it was because we like shows on theme parks), we decided to keep watching.
My parents did realize that it might of been too scary for me near the end, so they...muted the audio. For one house walk-though at the end. Without attempting to block the gory imagery.
Surprisingly, the only possible sign of trauma from the special I showed was a reluctance to go to Universal, and even then I think that had more to do with me being a rabid Disney fanboy at the time.