The disentanglement of person from brand may prove hard for both.

ECONOMIST: Market jitters

An analogy here would be trying to prove that brand advertising results in greater revenue, it intuitively makes sense but is difficult to prove.

FORBES: What Is It Like To Be A Programmer At Zynga?

However, as an investor and one who takes an interest in what moves the market, Microsoft has been a huge disappointment this year- particularly for a brand that now wants to prove that it can take on Apple and the realm of mobile.

FORBES: Wall Street's Not Buying What Microsoft's Selling

Superman truly has to save Warner Bros. this summer while Thor merely needs to prove that the Marvel brand is super-powered on its own no matter which hero is wearing the cape.

FORBES: Why 'Man Of Steel' And 'Thor: The Dark World' Are The Most Important Films Of 2013

The brand is as the brand does: It improves athletic performance and has the science to prove it.

FORBES: Pepsi ,Gatorade, and BMW Understand Marathon Branding. Do Pawlenty, Gingrich, and Romney?

"I'm not brand new at the school, and I don't have to prove that I can put an outfit together, " Meg says.

WSJ: With Loungewear Trend, Teens Wear Pajamas All Day

Google, Facebook, Twitter, and other major online ad operators are all scrambling to prove to these big spenders that their ads can move the needle on classic metrics such as brand recognition and intent to purchase.

FORBES: Twitter Offers Advertisers In-Stream Surveys To Measure Brand Impact

But whether the prime-time gig will prove advantageous for the Berkshire Hathaway (nyse: BRKA - news - people ) brand will depend on both the direction of the story and the success of the show.

FORBES: America's Most-Loved Spokescreatures