Random Events (often sub-titled "The Unofficial Voice of TSR Hobbies, Inc.") was published in-house by TSR as a type of company newsletter. An estimated 35 issues were produced from May 1980 through September 1984. News included company events, staff hiring, (some) product news, etc. The newsletter was distributed internally (only) and issues had very limited numbers of copies produced.
Issues 1 - 14 were simple typewritten newsletters. Issues 15+ were more professionally produced with typesetting, mastheads, photographs, columns, etc.
A few issues had minor color elements, but the periodical primarily was black and white.