From the USA website:
USA PRESENTS THE WHITE COLLAR SHIRT BAR AT ROCKEFELLER CENTER
In celebration of the premiere and signature style of White Collar, USA is giving you a chance to bring home a fashion classic: a FREE custom-fitted white collared shirt. If you are in New York City, join us at the White Collar Shirt Bar this Thursday and Friday:
Rockefeller Center Channel Gardens 49th Street, enter on Fifth Avenue Thursday, 10AM-6PM Friday, 8AM-6PM