Thanks! That show, and a similar series of specials with the equally imaginative title "Something Special" were sponsored in my area by Glass-Block, the biggest local department store (long defunct) who bought the whole thing and would knock out one or another of CBS's big variety hours once a month for it. The "Something Specials" were I think US-made, and starred past-their-prime performers like Allan Sherman or Sandler and Young. (I still recall Glass-Block's cheezy local commercial for their bridal shop, built around Gary Puckett's record of "This Girl Is A Woman Now" as the soundtrack...sheeesh...)
Thinking back again, I have dim memories of a (late 60's?) summer replacement variety show that was not British but European, with acts from France, Germany, etc. performing in their native languages. The acts were film or tape clips, tied together by a US host. I seem to recall Jim Backus, though he may have been only one of several rotating hosts. It had a title something like "International Showtime," but that wasn't it as that was Don Ameche's circus-of-the-week show from the early 60's. (Memories, memories...) This show might have been a summer replacement for either Jackie Gleason or Red Skelton.