Pre-order listings for a steelbook blu-ray and DVD of Paramount's Knuckles series have appeared on sites like Amazon and Walmart.The physical release does not have a confirmed release date yet but is priced at $31.99.Knuckles series follows the character on a journey of self-discovery as he teaches Wade the ways of the Echidna warrior.Fans can choose to watch the series on Paramount or wait for the physical release.