About 20 years ago, there was a run of "small convenience stores" across Yorkshire called "Jacksons". They probably bought out a lot of little "happy shopper" places and independents.

I first saw them in Leeds and thereabouts, but they were all over the place, and especially common in East Yorkshire (like there was one on every street in Hull city centre).

Anyway, anything of that size was eventually called a "Jacksons".

Sainsbury eventually bought them out, so now they're spelt "S A I N S B U R Y Apostrophe S", but pronounced "Jacksons".

This also applies to any other similar shop of that size.

So in some areas of Yorkshire, that's a "Tesco's Jacksons" and a "Big Tesco".