Show #623 Today's Contestants: Linda Shewey vs. Richard Heft vs. Bruce Adelstein Details Casts Title Show #623 Genres Reality Family Release Date 1987-04-29 Episode Runtime 00 Hours 30 Minutes Season Number 3 Episode Number 168 Production Companies Sony Pictures Television, Columbia TriStar Television, Jeopardy Productions, Merv Griffin Enterprises Alex Trebek Self - Host Johnny Gilbert Self - Announcer (voice)