pfft i never found that one disturbing really. could be because i didnt see it till i was 19. i dont like the shape shifting ones. or the one where the black man steals peoples skin pigment. that was disturbing when i was young. and now
X Files was my probably my favourite tv show in the later years of primary school. I think watching the episode with the incest-ridden murder family - who remembers? - may well have scarred me for life. It did slowly get worse over time, though. As far as I remember I've never actually watched the movies - might be worth a shot at some point.
the "home" episode is pretty sweet. the lightning guy episode is pretty sweet (jack black is the main character's best friend). and the pilot episode features seth green as a stoner