While the scariness may only frighten children below the age of 5 it's the other aspects that make it so iffy. The show mainly involves drug dealers. In one episode it shows how drugs can effect people. Also sometimes racist comments, that were acceptable in the 70s, are made. Still this Hulk series has some educational value as it did teach me a little about science but some of the facts are incorrect. David Banner (In the show he is David not Bruce) always does the right thing and helps people that are in need.
Beware the dream sequences that appear in The Hulk!
fyi - In the episodes "Pilot" (or the first episode), "Married" and "Homecoming," there are dream sequences that are pretty intense, even by today's standards. They generally involve a spouse or parent dying and the grief he feels. When I saw "Married," it was pretty traumatic and I was 10!