I don’t think M*A*S*H has dated that much really. It has a certain quality, much the same way that ‘Dads Army’ has, in that as it was set in the past rather than in the time it was filmed, it wont really date that much. Like you Arthur I watched it recently and found the laughter track completely ruined it for me. I seem to recall that when it was first shown on BBC2 there was no laughter track and that for me added a certain ‘grittiness’ to it. The repeats on the comedy channels have now ruined it with the canned laughter that has now been added in.
Martin