The WOSU Annex is Herrick Archives Number 133. It is located at 2470 North Star Rd., behind WOSU-TV (Herrick Archives Building 094) on The Ohio State University campus. The building was constructed by the Telecommunications Center under purchase orders, and erected in late November 1968. Around 1973, the building was sold or leased to the Ohio Educational Broadcasting Commission. In 1989, the Board of Trustees approved a plan to build an addition for the Ohio Education Broadcasting Network Commission.