Fans who pay $7.25 for a 16-ounce domestic beer will get 4 extra ounces for Saturday's playoff game between the Seahawks and Saints after a video shows big and small cups hold the same amount of beer.

Bottoms up, Seahawks fans.

Fans who purchase a 20-ounce beer Saturday at Qwest Field will pay the 16-ounce price after a video brewed up a controversy about whether beer-drinking fans have been getting their money’s worth.

The video, which was posted on YouTube and Facebook, shows a man pouring liquid from a taller cup to fill a shorter cup, both with Seahawks logos. With a cheering crowd as the soundtrack, he says, “Hold it!”

Later, he yells, “Call the cops!”

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A 20-ounce beer at Qwest Field costs $8.50, $1.25 more than the supposed16 ounces, according to a Seahawks spokeswoman. But for Saturday’s NFC wild-card game against the New Orleans Saints, all beer will be 20 ounces and cost $7.25.

“This is the first time we have been alerted to this fact,” said a statement from First & Goal, which manages the stadium for the Seahawks. “Upon our internal investigation this afternoon, we discovered the cups that are marked 16 oz. hold 20 oz. of liquid. Fans who purchased a 16 oz. beer actually received 20 oz. of beer for the 16 oz. price. Fans that purchased the 20 oz. beer received the amount they purchased.”

Sounds like a good deal, unless fans who bought 20-ouncers are upset about the extra buck-and-a-quarter they didn’t need to shell out.

The statement said First & Goal officials did not know when the mix-up began and would try to solve the problem as quickly as possible.

Take your time. Until then, most Seahawks fans will view it as a glass half full — and drink up.