I know that on the original dvds of MASH, you could remove the laugh tracks on the episodes. But in 2009, they released the seasons. Does anyone here know if the newer releases have the option to remove the laugh track ?

We own the releases that were in the extra wide three disc cases, which I imagine was the first release, and you could remove the laugh tracks on all but I think one episode (they lost the original materials and had to use a broadcast tape version).

Since removing this feature would require re-authoring the audio files of 33 discs worth of episodes, I seriously doubt they would have done that.