I feel I may be missing out. From memory I don’t believe I have ever set foot in a Lidl and certainly haven’t been in an Iceland in over 20 years.
Was Iceland once Bejam or similar?
In brief, and to the last, "well, sort of". In 1988, Bejam bought the Victor Value supermarket chain off Tesco. Then, while it was still hugely successful, Apthorp [the founder of Bejam] sold Bejam to Iceland in 1989, and all of the stores used the Iceland name.
As to "I don’t believe I have ever set foot in a Lidl ", I suppose if one has Fortnum's, Harrod's and Selfridge's on one's doorstep, one has little need for Aldi or Lidl, but for those of us banished to the colonies (read: Cornwall), one has little option ...
--
** Phil.