It's out of print?!

I was looking at TCM's schedule for today, and was surprised to see that Witness For the Prosecution (airing overnight tonight at 2:30 AM) doesn't have a "Buy DVD" icon next to it. Oh, sure, it's gotten a DVD release, or mutliple releases if you believe Amazon. It's just that none of those DVD releases seems to be in print any longer. So you'll either have to stay up late, record it, or pay big bucks for an old DVD.

I would have thought that Witness For the Prosecution was one of those movies that was well-enough known to deserve more frequent DVD print runs, but then, what do I know about the business?