In addition to the expense of buying the commercial time, Thomas Harpointner says there are additional costs that many forget.

VOA: standard.2010.01.27

Like many of U2's songs, it is an expressive love song with a melody that is hard to forget.

VOA: special.2009.04.10

Many people went to the movies to try to forget their troubles.

VOA: special.2009.07.19

Everyone remembers his line about fear, but what many forget was that FDR used his speech to assign blame.

FORBES

Afghanistan's southern desert is stunning but the country's problems have made many forget how beautiful the place actually is.

BBC: Newsbeat - Afghanistan diary: Day Two

What many forget is that it was during the Reagan years that we went from being a creditor nation to a debtor nation as President Reagan was required to borrow heavily in order to make up for the income shortfall that resulted from so massive a tax cut.

FORBES: The Numbers Don't Lie-Why Lowering Taxes For The Rich No Longer Works To Grow The Economy