Well, I remember growing up we thought Sesame Street wasn't "bad".
In fact one day my cousin had put it on for her son ( he was 2 or 3 at the time, graduated High School this past spring)
She went to do something in the other room came back and almost fell over that Sesame Street had a homosexual couple on it
And now, just the past couple years, the stuff that was "safe" on PBS has become infiltrated with messages of approval for same-sex relationships.......
they used to run a song between shows about families and love. The images would flash so fast that if you blink you miss it, and to an untrained/unsensitive and child mind it wouldn't be noticed, but it had several quick flashes of same sex "families"