I can't quite pin it down to anything, but randomly there will be an ad playing from the site. There is not any visual of it anywhere on the page, but on my tab it shows the volume speaker designating that it's coming from SVTP. Happens 5 or 6 times a day on various forums, pages, etc. I can't replicate it on command. Seems to have started after I re-upped my premium membership, could be coincidence, but I don't know?