There are a couple of ways to avoid ads, but both mean a bit of innovation...
1) Make a cardboard cut-out with a sellotaped hook at the top, and hang one down on each side of the screen! It does work, but looks ridiculous...
2) Pres 'Alt' and '+' to make all the text even bigger, until just the normal writing is on the screen, and the ads are so far away, they fall off the screen to each side. The only downside to this, is to have to read it all from the other side of the room!
I don't really mind static ads, but the twinkling ones are annoying!