Yeah... technically. It would be the first Non-Public television special in primetime, so let's leave it at that.
That said, if this does well, think about the possibilities. We may have a primetime major network (non-PBS) 40th anniversary special if this can prove that it can stand out on commercial TV. It has been a while since one of those has been on. Street we live on was PBS exclusive (not to mention it counted as an episode), but we really need a 40 years and counting special just like the ones they used to have.
That said, if this does well, think about the possibilities. We may have a primetime major network (non-PBS) 40th anniversary special if this can prove that it can stand out on commercial TV. It has been a while since one of those has been on. Street we live on was PBS exclusive (not to mention it counted as an episode), but we really need a 40 years and counting special just like the ones they used to have.