I just happened to pop into the television series section of iTunes earlier today and noticed that MASH is finally available for purchase in iTunes.
I grew up watching MASH on TV when it first aired and loved watching it over and over again. Fast-forward several decades and now my 16 year-old son is a HUGE fan of the show. Over the last couple of years we have slowly bought him all of the seasons on DVD because up until now it was not available anywhere in a digital format. Apple is also selling by individual Seasons (there are 11 in total) for $9.99 each, but for just $99 you get the entire series (and at a discount). So what are you waiting for?