I read somewhere that he was adamant that 451 was about the dangers of TV (lol) and censorship wasn't even what he had in mind. Like, the books were being burned not because gubment bad, but Video Killed the Literary Star.
At one stage, apparently, he was giving a lecture at UCLA, mentioned 451 was about TV being bad, was interrupted by a student who said Bradbury was, in fact, wrong about the book he wrote (in a weird death of the author way) and he stormed out. Source: https://skeptics.stackexchange.com/questions/27821/did-ray-bradbury-ever-claim-that-fahrenheit-451-was-not-about-censorship