Post Sedgemonkey's news (Videogame ads 1982), I searched to find more classic ads and came up with this fantastic site.
It features TV ads for video games from all around the world.
Among the vast array of adverts (A lot of which are pure Zany Japanese Weirdness!!(Check out Seaman in the DC section, Dont ask!!)) are such gems as Powerglove for NES, Supermario cereal (WTF!!) and MK shaolin Monks (Over the top but funny!!).
Check it out, with over 3000 adverts, your'e bound to find a few blasts from the past and a lot of newer ads from other countries that you may never have seen before.