[Update: 08:50] Telltale has also announced an agreement with Sony. This'll see Telltale publish retail PlayStation 3 versions of its PlayStation Network games, also starting with BTTF, also at $20.

Adventure game aficionado Telltale Games will be bringing its Back to the Future: The Game to Wii this October as a $20 retail release, after signing up as an official Nintendo publisher. Being on a disc should let Telltale avoid the problems that troubled its previous WiiWare releases.

"Securing a publishing agreement with Nintendo of America ensures that we can make our popular content available on every major console platform," Telltale CEO Dan Connors said in the announcement. "This signing is a significant milestone in our long-term growth strategy."

Telltale has released games for Wii before, but only as WiiWare downloads, where they had to deal with Nintendo's small size limit. WiiWare is hardly a high-profile sales channel, too.

"The voices and textures are the way they are because we're limited to 40 megs for WiiWare titles," one Telltale member said of Tales of Monkey Island Episode 1. "The PC versions of our games are usually 150+ megs, and most modern games range anywhere from 1-10 gigabytes or more. Talk to Nintendo about this one."

Being a retail disc, Back to the Future on Wii should hopefully look and sound a lot better. It was originally released in five episodes for PC, Mac, PlayStation 3, and iPad. The first episode launched in December 2010 on PC, with the last arriving this June.

Telltale is working on a tasty slate of big-named licensed adaptations that'd easily find homes in the Wiis found in almost every living room across the land. Along with Jurassic Park: The Game, it's working on games based upon Law & Order: Los Angeles, The Walking Dead, and comic book Fables.