The Commercial rule is a rule to identify which Commercials count and which Commercials don't.
Comercial on its own.
If a commercial has a reoccurring character such as Flo (Progressive), Buzz The Bee (Honey Nut Cheerios), Pepsi Man (Pepsi) and others then the product or character spin off holds has their on Page.
What if it doesn't have original characters, but they crossover with a series?
If it doesn't have an original character, then it doesn't count. However, if 2 or more fictional series interact in the commercial, then it does count. These types of commercials will be catagorized as Commercial Links.
Here are some examples of what's good and what isn't.
What does not count:
Blu-ray Commercial & Soundtrack
Doesn't count, because this commercial is showing clips of fictional series.
Big Game Ad Starring Terry Crews and the Muppets 2014 Toyota Highlander
While it does interact with The Muppets, it's just 1 series and/or has no original characters, so it doesn't count.
What does count:
Progressive Insurance - Sonic The Hedgehog
Original Characters and Interact with the Character.
RadioShack Super Bowl 2014 Commercial 80s HD 720p
While no reoccurring characters this commercial does interact with characters from many series so it does count.