Single-day Comic-Con tickets went on sale today – and 76% of Saturday’s tickets were already gone by the time I posted this item.

The 41st installment of the Comic-Con International phenomenon takes place July 22-25, 2010 at the San Diego Convention Center. All the four-day tickets sold out in November. No on-site membership badges will be sold.

Thursday, Friday and Saturday single-day tickets are $35 for adults and $17 for juniors (ages 12-17), seniors (60 or older) and active-duty military. Sunday tickets are $20 for adults, $10 for juniors, seniors and active-duty military. Children younger than 12 get in free when accompanied by an adult.