Yeah, my Asus--fortunately?--only interferes with my PC speakers, but is the only router to do so. As Arlo stated, Asus does pack quite a punch in RF, but I LIKE that as this router has solved all previous problems with past routers as far as speed and distance. I had no idea this can also mess with broadcast channels. I learn someting new everyday.
Was it a few years ago that Hair microwaves--from China, of course--that failed to meet FCC requirements to prevent interference in the home were, nevertheless, approved and allowed to entry into the U.S. for sale to consumer purchase. What is the point of the FCC requirements to prevent interference if favored "countries or brands or connected people" are allowed to go on sale here in the USA, anyway? In today's era, I don't really find it excusable that the poster had the problem he did. Of course, the wall warts for devices are CHEAP to begin with and one can expect even a NEW one of those power bricks to perfrom outside of its required constraints--perhaps, even the very moment you plug it in! On the other hand, replacing a bad power brick is a lot cheaper than replaceing an internal power supply if the problem is the power supply.