Are children allowed to watch whatever they want on tv?

Some almost qualify in a different sense as Kiddy P*rn. There have been plots on TV and other Cartoons with- for example Homosexuality as a plot device ( Top Cat) an Air Force officer living off-base and shacking-up ( I had no idea what that meant) in Steve Canyon, and sickening humor poking fun at mentally-retarded people in animal form in (Baby Huey) , also some disturbing racist content. cartoons essentially run roughshod and are not subject to the same oversight as movies or prime time. There is even a more or less musical sitcom cartoons based in part on the career of a well-known rock producer currently occupying the Big House. one episode- the River Ritz is a slightly geared down version of what Actually Happened in the Neptune Motor Lodge ( water angle retained!) in about l96l. seems there was a publicity shot of three girls ( of a well known rock band) in an oversized bath tub. great fun, until one of them called her mother, who then called the police.. this stuff is Kiddy P*rn II.