The networks don't even call them censors, but use the term "Standards and Practices". Only the uneducated use the term, 'censor' when describing voluntary restraint.
Only a government can truly censor you.
"Only the uneducated use the term, 'censor' "
I believe the above is called a "personal attack". It's also apparently against the "rules". Mustn't violate the rules. Otherwise you may be censored.