Year range The 13 Ghosts of Scooby-Doo

Currently, the year range for The 13 Ghosts of Scooby-Doo is listed as 1985-1986: https://www.imdb.com/title/tt0088628/reference/ 

However, as you can see, all episodes listed are from 1985: https://www.imdb.com/title/tt0088628/episodes/?season=1 

There's also a trivia item stating there is only one season: https://www.imdb.com/title/tt0088628/trivia/?item=tr8030318 

The former Big Cartoon Database also only mentions 1985: https://archive.ph/20130118060248/http://www.bcdb.com/cartoons/Hanna-Barbera_Studios/T/The_13_Ghosts_of_Scooby-Doo/index.html 

The same goes for TMDB: https://www.themoviedb.org/tv/1069-the-13-ghosts-of-scooby-doo 

Can a staffer fix the year range please?