La conquista del Oeste

Few shows (mini-series) except for "Centennial" have depicted the gritty realism of the west as well as How The West Was Won. Jim Arness brought the character of Zeb Macahan to life / bigger, rougher and tougher than Matt Dillon could have ever hoped to be. I have the entire multi-season mini series, including the premiere movie, on 15 year old VHS tapes that are losing their quality. I wish the series would be released on DVD in a boxed set. Gunsmoke has been released, and considering some of the awful shows that HAVE been released I don't know why they don't. Does anyone know the status of this situation? I would like to find out who produced the series and perhaps recommend that there is a large audience out there for this kind of DVD release. Perhaps Jim Arness' website could help.