As Christians living in a world of heretical teaching, we don't need to know about every false religion or belief, we just have to know the Truth. We must keep our eyes open to recognize the shiny distractions of the enemy. Moreover, as the Apostle John writes in these verses, we must shut our doors to those trying to convince us of another gospel. And we must close our wallets to them -- don't buy their books, watch their shows, etc. -- or we'll be helping to spread the lies.
This program is already assigned to that list.