Next time get your TV cable setup properly. That's the only reason those clutches should ever go out. I'm rebuilding a trans with 314K miles on it(farm truck that pulled a lot) and aside from being dirty from other causes(1-2 accumulator wore out letting 2-4 band slip so it filled the trans with burnt band particles), the clutches look like they could go for another 100K.
This is the TV cable bible if you will. Once you fry your brain trying to understand it, you'll make sure it's always adjusted correctly.
I'm sure it's recommended to readjust the cable since it probably stretches over time and gets out of adjustment resulting in eventual clutch failure from reduced line pressure.
Depending on how much you've drove it since it happened if you know someone who's done one before you could have it done in a day for less than $50.