With Super Bowl Sunday approaching, a flurry of advertisers already have released their game-day ads in the hopes of stoking excitement and building up shares on social media. Because ads cost up to $5 million per 30 seconds, advertisers are looking to extend buzz to make their investment pay off. Here is a look at some of the spots that advertisers have released ahead of Sunday's game on CBS:
Avocados from Mexico: The trade group that promotes Mexican avocados has a quirky ad showing aliens in a museum appreciating human culture, including a Rubik's Cube and actor Scott Baio.