If a child under 18 lucks out by bringing an item chosen for taping, a parent's signature is required on a release form. In fact, anyone taped for a televised appraisal must sign a release form. About 60-70 appraisers in more than 20 different categories will provide verbal assessments. No coins or stamps will be appraised at any show and neither Austin nor Denver will host appraisals on firearms. How long it actually takes to navigate a line depends on how many people are in front of you.
Some categories are more popular than others and require more wait time.
In other words, dress comfortably and plan to be in line for quite some time. Special provisions aren't made for the elderly or physically challenged, but all Roadshow venues are wheelchair accessible. And if you're taking a large or heavy item, be prepared to transport it yourself on a luggage cart or dolly. No staffers will be on hand to assist with moving. Lots of rules, lots of restrictions, but with the capacity for thousands of people at each taping, it just makes sense to keep things organized.