I have to dump Huffingtonpost since the rudely highlight spoilers on their front page as a headline. CNN the bottom scroll sometimes has spoilers. Local news well just turn it on at the 15 and 45 to catch the weather and hope they aren't talking Olympics. Even on GT I saw a spoiler yesterday.
When I discuss an event to avoid spoiling for everyone this is what I do and may I suggest it.
a) Title should be "Olympics (name of sport)".
b) In body do the following type in Spoiler one letter for each line like this
This way one has to click to see a possible spoiler.