Here’s what you need to know! 10, on nbc at 9 p. m. A “downton abbey” primetime special is set to air on nbc to celebrate the third and final film in the “downton” franchise before its theatrical release. Nbc has announced the new primetime special, downton abbey celebrates the grand finale, which is set to air on wednesday, sept. Variety has learned exclusively … · the one-hour primetime event will feature the cast sharing personal memories and never-before-told secrets from the franchise. The grand finale, the cinematic return of the global phenomenon, follows the crawley family and their staff as they enter the 1930s. “downton abbey celebrates the grand finale” will air sept. The primetime behind-the-scenes special downton abbey celebrates the grand finale will air on nbc on sept. Et/pt and stream the next day on peacock. · nbcs primetime special downton abbey celebrates the grand finale is celebrating the shows final chapter. As the beloved cast of characters … · downton abby has set a network tv special ahead of the grand finale’s theatrical debut. Et/pt and will stream the next day … Variety has learned exclusively that nbc will … · downton abbey celebrates the grand finale | nbc join the cast of “downton abbey” in a toast to the global phenomenon’s final chapter with an all-new primetime special, “downton … Get all the details on the new special, here. · a “downton abbey” primetime special is set to air on nbc to celebrate the third and final film in the “downton” franchise before its theatrical release. · a downton abbey primetime special is set to air on nbc to celebrate the third and final film in the franchise before its theatrical release