It's not just about the ads, but seeing the original telecast in tact all the time.  We pay for American networks, let us see them.  So many times there's other problems with simsubs such as poorer audio / video, scrolling issues with the picture, snipes placed overtop at the worst times possible, pixelation, and live events that overrun their allotted time being cut-off due to an automatically scheduled simsub to take place by the BDU at the top of the hour.  

Enough is enough, it's time to abolish simsubs altogether.  If CTV and Global can't come up with their own content to compete, then get out of the TV business!