Tri-School Theatre was born out of a vision to create a theatre arts training program for students attending the three Catholic, single-sex high schools in North Orange County: Cornelia Connelly School and Servite High School in Anaheim, and Rosary High School in Fullerton. Since its inception in 1988, the program has grown into a four-year Performing Arts Conservatory which now includes training in Musical Theatre, Acting, Movement, Shakespeare, Improvisation, Technical Theatre, Playwriting, and an Individualized Mentorship Program. A Charter was developed in 1994 formally establishing the Tri-School Theatre Program into the curriculum of each of the three participating schools. The Conservatory operates out of the 980 seat, fully-equipped Servite Theatre.