I am a big believer of 'prevention is better than cure' mindset. In my humble opinion the best way to avoid the burden of useless information is to keep yourself away from it. 

There is a reason why book reviews exist, a reason why rating system for books and movies exist. The idea is to scale an object of information so as to decide whether it would be of value to the watchers/listeners/readers. 

Although I can see that there are some useless areas that you cannot completely avoid but if care is taken at the beginning in deciding what to watch and what not to watch than a lot time can be saved later.