That’s probably what it is. The default soundtrack is dynamic as all heck, so the loud sections can easily overload smaller sound systems, such as TV speakers.
Try switching to track 2, which is the 35mm stereo mix, and see if it still happens. Since the dynamic range of this mix is reduced compared to track 1, it should all come through cleanly, without distortion. Track 4, which is the 1985 version, should also work.