Not PBS but an affiliate broadcaster and the data is not lost as in destroyed, but legally encumbered.

Full headline: PBS broadcaster loses access to 50TB of data comprising 70 years of TV history after contracted cloud storage vendor goes defunct — public TV channel sues Iron Mountain data center, which hosts archival materials, to ensure preservation

The channel’s attorney also reached out to Iron Mountain to inform the company of the pending case in Colorado; Iron Mountain finally admitted to holding the data. Iron Mountain initially agreed to turn over Nine PBS’ data, but it eventually backtracked and claimed that OSS owned the data it stored. Because of this, Nine PBS now has no choice but to sue Iron Mountain, too, to ensure the data is not deleted.