I was trawling the cheese display for a reasonably priced Brie or Camembert but couldn't find any. I chose the Tesco own brand cheapy Brie for £1.21 (200g or 250g). Then at end of aisle I found the above ie. "Tesco Christmas Creamy French Brie" 350g at £1.34 which is half-price and considerably bigger than the Tesco cheapy.
Ive no idea if its available half-price online.