The big UK news this week in terms of store finds was the Marvel Legends Infinity War Wave 1 figures arriving at Asda stores. Not only that, but they were sub £19 with a price tag of £18.97 per figure.
I confirmed this myself in Bolton where the full wave was on shelf. Working to a budget I went with Proxima Midnight and Iron-Spider and hope to go back for more later.
It seems these figures aren't in every Asda, and in deed I had tried two others before Horwich and found nothing, not even a label. The best guide I can give is that Horwich is listed as a Supercentre on the Asda Store Locator. Other stores are then designated Superstore or Supermarket. I would hazard a guess that the figures are part of an expanded range of Toys in these larger Supercentres.