Everyone who posts this ad for Activision's Atari 2600 classic Pitfall! on YouTube mentions that a young Jack Black leads off the commentator lineup. But nobody ever mentions the enthusiastic grandma played by Lucille Benson, a terrific character actress who appeared in lots of 1970s and 1980s TV series and movies. Her career only really took off after she reached a certain age, and she passed away in 1984:
What I like about this ad is its portrayal of the infectious, participatory enthusiasm engendered by great videogames -- at the time, its appeal was being exaggerated for comic effect, but it's not that far off the mark in the age of the Wii. Now where's my pith helmet?