'tits' is merely one of the words in the famous comedy routine by George Carlin..

"The seven dirty words are seven English-language words that comedian George Carlin first listed in 1972 in his monologue "Seven Words You Can Never Say on Television". At the time, the words were considered highly inappropriate and unsuitable for broadcast on the public airwaves in the United States, whether radio or television. As such, they were avoided in scripted material, and bleep-censored in the rare cases in which they were used; broadcast standards differ in different parts of the world, then and now, although most of the words on Carlin's original list remain taboo on American broadcast television as of 2010. The list was not an official enumeration of forbidden words, but rather was compiled by Carlin. Nonetheless, a radio broadcast featuring these words led to a Supreme Court decision that helped establish the extent to which the federal government could regulate speech on broadcast television and radio in the United States."

(from Wikipedia)



The problem in the US is that for a long while, much broadcasting was commercial, and sponsors were OH so very worried about offending the uptight 'Christian' audience. At one time, TV programs showed married couples using twin beds, with all sorts of silly rules about what was said and who could touch or kiss whom...and where. Many of these rules have been relaxed or ignored, but one still hears 'bleeping' of 'naughty' words on news programs and prime-time 'sponsored' shows.
   Some comedians make a point of using words they KNOW will be bleeped, and at least one has cute little images flashed over his mouth...presumably to keep lips-readers from being offended. *grin*

Yes, there IS still a lot of tiptoeing around certain subjects on American radio & TV, but stuff is creeping in, especially late at night, and it's really sad what gratuitous crap is being foisted on us as the boundaries are pushed by hucksters with no taste.