San Francisco's Museum of Modern Art was one of the first major museums to establish a department specifically dedicated to media arts. The In Collaboration exhibit showcases this legacy with several early instances of time-based installation. The works, most dating from the mid-'70s, directly engage viewers, branding our observation with participatory self-consciousness. Several of the pieces (Vito Acconci's Command Performance, Dan Graham's Opposing Mirrors and Video Monitors on Time Delay) spar with the viewer's complacent perspective, while others (Richard Serra's Boomerang, Joan Jonas' Songdelay) are more meditative in their transparent view of process. The exhibit also features the West Coast premiere of the large-scale version of Katharina Sieverding's multiplied self-portrait, Transformer.