Scooby-Doo boxes, iron-on transfers, coloring books, story books, records, underwear, and other such goods. When Scrappy-Doo was introduced to the series in 1979, he, Scooby, and Shaggy became the foci of much of the merchandising, including a 1983 Milton-Bradley "Scooby-Doo and Scrappy-Doo" board game. The first "Scooby-Doo" video game appeared in arcades in 1986, and has been followed by a number of games for both home consoles and personal computers. "Scooby-Doo "multivitamins also debuted at this time, and have been manufactured by Bayer since 2001. "Scooby-Doo" merchandising tapered off during the late 1980s and early 1990s, but increased after the series'
Scooby-Doo the Night" on a flight to one of the development meetings, and decided to rename the dog "Scooby-Doo" and re-rechristen the show "Scooby-Doo, Where Are You!" The revised show was re-presented to CBS executives, who approved it for production. The first episode of "Scooby-Doo, Where Are You!" "What a Night for a Knight" debuted on the CBS network Saturday, September 13, 1969. The original voice cast featured veteran voice actor Don Messick as Scooby-Doo, radio DJ Casey Kasem (later host of radio's syndicated "American Top 40") as Shaggy, actor Frank Welker (later a veteran voice actor in his own right)