Teenage Mutant Ninja Turtles Original Trilogy Unavailable to Purchase

Anyone else notice or have any info on why the original Teenage Mutant Ninja trilogy is no longer available to purchase? According to cheapcharts it looks like it was recently removed from both FAH and Apple.

These are D2D titles, at least they were last year, when I grabbed them. Did someone like Shout Factory grab the rights? If that's the case, I would grab them via D2D while you can... for those that don't have them already.