TNT (Thursday Night Thing) is a dynamic occasion to interact with the arts and artists in the San Diego region. A quarterly event held in conjunction with the opening of major exhibitions at MCASD Downtown, TNT features live music, artist talks, art-making activities, and interactive performances themed around and inspired by current exhibitions.

Support for TNT is provided by mediaThe foundation, inc. Additional funding for MCASD programs comes from The James Irvine Foundation Arts Innovation Fund, the Institute of Museum and Library Services, a federal agency, the County of San Diego Community Enhancement Program, and contributors to MCASD's Museum Fund. In-kind support for TNT is provided by 91X, San Diego CityBeat, and Stone Brewing Company. Institutional support for MCASD comes, in part, from the City of San Diego Commission for Arts and Culture.