Is this available on DVD?

Criterion released it as a part of a box set, but I believe it is out of print. You can still purchase it on Amazon though, but I think it's gonna cost more than pretty much anyone is willing to spend.

It just aired on TCM like last week, so that channel is going to probably be your best bet if you haven't yet seen the film and really want to, but you'll probably have to wait a while for the channel to play it again. Also, my first viewing was done
online on Veehd, the quality was very good as well.

Good luck!